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Dell H310 Network Card User Manual

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1. Error Message Adapter at Baseport xxxx is not responding where xxxx is the baseport of the controller Corrective Contact Dell Technical Support Action Offline Or Missing Virtual Drives With Preserved Cache Error Message Error Message There are offline or missing virtual drives with preserved cache Please check the cables and ensure that all drives are present Press any key to enter the configuration utility Probable Cause The controller preserves the dirty cache from a virtual disk if the disk becomes offline or is deleted because of missing physical disks This preserved dirty cache is called pinned cache and is preserved until you import the virtual disk or discard the cache Corrective Use the lt Ctrl gt lt R gt utility to import the virtual disk or discard the preserved cache For the Action steps used to manage preserved cache see the topic Managing Preserved Cache Virtual Disks Offline Error Message Error Message x Virtual Disk s Degraded where x is the number of virtual disks degraded Probable Cause This message is displayed when the BIOS detects virtual disks in a degraded state Corrective Take corrective action s to make the virtual disks optimal The BIOS does not take any action Action Virtual Disks Degraded Error Message Error Message x Virtual Disk s Degraded where x is the number of virtual disks degraded Probable Cause This message is displayed when the BIOS detect
2. Issue A physical disk fails during a reconstruction process on a redundant virtual disk that has a hot spare Corrective The dedicated hot spare goes to Ready state and the virtual disk goes to Failed state Action Virtual Disk Fails Rebuild Using A Dedicated Hot Spare Issue A virtual disk fails during rebuild while using a dedicated hot spare Description The dedicated hot spare goes to Ready state and the virtual disk goes to Failed state Physical Disk Takes A Long Time To Rebuild Issue A physical disk is taking longer than expected to rebuild Description A physical disk takes longer to rebuild when under high stress For example there is one rebuild I O operation for every five host I O operations You cannot add a second virtual disk to a disk group while the virtual disk in that disk group is undergoing a rebuild The firmware does not allow you to create a virtual disk using the free space available in a disk group if a physical disk in a virtual disk group is undergoing a rebuild operation SMART Errors SMART monitors the internal performance of all motors heads and physical disk electronics and detects predictable physical disk failures NOTE For information about where to find reports of SMART errors that could indicate hardware failure see the Dell OpenManage storage management documentation at dell com support manuals Smart Error Detected On A Physical Disk In A Redundant Virtual Disk Issue A SMART erro
3. lt Ctrl gt lt R gt to configure the virtual disks For procedures to configure the virtual disks see the topic Management Applications For PERC Cards The controller BIOS is disabled To resolve the issue enter the BIOS Configuration Utility lt Ctrl gt lt R gt to enable the BIOS For information on configuring virtual disks see the topic Management Applications For PERC Cards Physical Disk Issues Physical Disk In Failed State Issue One of the physical disks in the disk array is in the failed state Corrective Update the PERC cards to the latest firmware available on dell com support Action Unable to Rebuild A Fault Tolerant Virtual Disk Issue Cannot rebuild a fault tolerant virtual disk For more information see the alert log for virtual disks Corrective The replacement disk is too small or not compatible with the virtual disk Replace the failed Action disk with a compatible good physical disk with equal or greater capacity Fatal Error Or Data Corruption Reported Issue Fatal error s or data corruption s are reported when accessing virtual disks Corrective Contact Dell Technical Support Action Physical Disk Displayed As Blocked Issue One or more physical disks is displayed as Blocked and cannot be configured Corrective Update the PERC cards to the latest firmware available on dell com support Action 79 Multiple Disks Become Inaccessible Issue Rebuilding the physical disks after
4. F2 to expand the list of allowed operations on the disk 4 Select Replace and then Start 5 Press the down arrow to highlight a replacement disk and then press the spacebar to select the disk 6 Select OK to start the replacement 55 K NOTE The replacement disk must be a hot spare or an unconfigured disk without a foreign configuration It must have the same or greater capacity and should be of the same type as the disk it is replacing Restrictions and Limitations The following restrictions and limitations apply to the Replace Member operation e The Replace Member functions are restricted to one per array for RAID 0 RAID 1 and RAID 5 and two per array for RAID 6 The Replace Member function and rebuild cannot run simultaneously on a RAID 6 virtual disk The rebuild operation has a higher priority and the Replace Member operation is aborted if a rebuild begins The Replace Member function and rebuild cannot run simultaneously on a RAID 6 virtual disk The rebuild operation has a higher priority and the Replace Member operation is aborted if a rebuild begins Stopping Background Initialization Background initialization BGI is the automated operation in which parity is created and written BGI does not run on RAID 0 virtual disks Under certain conditions the BIOS Configuration Utility lt Ctrl gt lt R gt displays a message if you want to stop BGI in progress An alert message is displayed if BGI is in prog
5. Press the down arrow key to highlight Virtual Disk Press lt F2 gt to display the menu of available actions Press the down arrow key to select Consistency Check Press the right arrow key to display the available actions Start Stop oF Pw nN gt Select Start and press lt Enter gt to run a Consistency Check 43 The Consistency Check runs and checks the redundancy data in the virtual disks 7 After you start the Consistency Check press lt Esc gt to display the previous menu if needed Importing Or Clearing Foreign Configurations Using The VD Mgmt Menu When a foreign configuration exists the BIOS screen displays the message Foreign configuration s found on adapter In addition a foreign configuration is displayed on the right side of the Ctrl Mgmt screen You can use the VD Mgmt menu to import the existing configuration to the RAID controller or clear the existing configuration In addition you can view the foreign configuration from the Foreign View tab without importing the configuration K NOTE The controller does not allow an import of configurations that results in more than 64 virtual disks K NOTE To import a secured foreign configuration see the topic Security Key And RAID Management Perform the following steps to import or clear foreign configurations 1 During bootup press lt Ctrl gt R when prompted by the BIOS screen The VD Mgmt screen is displayed by default 2 On the VD Mgmt scre
6. Select Foreign Configuration View to display the foreign configuration information on the Foreign Configuration View screen Press F2 to display the options Import Clear E NOTE You must have all the disks in the system before you perform the import operation Select Import to import the foreign configuration to the controller or select Clear to delete the foreign configuration s from the re inserted disk s In the Preview Configuration Data window the status ofa physical disk that needs to be rebuilt is displayed as Rebuild NOTE When you import a foreign configuration the dedicated hot spares in the configuration are imported as dedicated hot spares on two conditions the associated virtual disk is already present or the associated virtual disk is also imported along with the configuration NOTE Start a consistency check immediately after the rebuild is complete to ensure data integrity for the virtual disks For more information about checking data consistency see the topic Checking Data Consistency If all the physical disks in a virtual disk are removed at different times and re inserted the controller considers the disks to have foreign configurations Perform the following steps a b c Select Foreign Configuration View to display the complete virtual disk across different foreign configurations and allow foreign configurations to be imported Press F2 to display the options Import and Clear F N
7. 1 Press lt Ctrl gt lt N gt to access the PD Mgmt screen A list of physical disks is displayed The status of the each disk is displayed under the heading State 2 Press the down arrow key to highlight a physical disk that is a hot spare 3 Press F2 to display the menu of available actions 4 Press the down arrow key to select Remove Hot Spare from the list of actions and press lt Enter gt The physical disk is changed to the Ready state The status of the physical disk is displayed under the heading State NOTE Try to use physical disks of the same capacity in a specific virtual disk If you use physical disks with different capacities in a virtual disk all physical disks in the virtual disk are treated as if they have the capacity of the smallest physical disk 5 Select additional hot spares if desired and follow step 1 to step 4 to remove them Replacing An Online Physical Disk In addition to the automatic Replace Member operation you can manually replace any physical disk that is part of a virtual disk using the Replace Member functionality Perform the following steps to replace a physical disk 1 Inthe Virtual Disk Management window select Virtual Disk and press the down arrow key until Physical Disks is highlighted 2 Press the right arrow key to expand the list of physical disks that are members of the virtual disk 3 Press the down arrow key and highlight the desired physical disk you want to replace Press
8. Configuration Utility lt Ctrl gt lt R gt 57 NOTE The controller automatically imports every optimal and degraded foreign configuration without enabling the feature if there is no native configuration on the controller To enable Auto Import 1 Press lt Ctrl gt N to access the Ctrl Mgmt menu screen 2 Press Tab to move the cursor to Enable Auto Import in the Settings box 3 Press the spacebar to select Enable Auto Import An X is displayed beside Enable Auto Import 4 Press Tab to move the cursor to the Apply button and then press lt Enter gt to apply selection The Auto Import is enabled Disabling Auto Import To disable Auto Import 1 Use the spacebar to de select Enable Auto Import 2 Select Apply and press Enter The Auto Import is disabled Restoring Factory Default Settings You can use the Ctrl Mgmt menu screen to restore the default settings for the options in the Settings box The settings are Enable Controller BIOS Enable BIOS Stop on Error and Enable Auto Import Perform the following steps to restore default settings 1 Press lt Ctrl gt N 2 Press Tab to move the cursor to the Settings box 3 Use the spacebar to de select the settings for the options in the Settings box 4 Press Tab to move the cursor to the Factory Default box and press lt Alt gt Enter or the spacebar A dialog box is displayed for you to confirm your choice 5 Select Ok and press
9. Ctrl gt lt P gt on the PD Mgmt screen to move to the VD Mgmt screen FI FL F5 FI 1 lt F12 gt Press the lt spacebar gt to select or deselect a controller setting in the Ctrl Mgmt View You can set up a disk group and create virtual disks using the procedures contained in this section Each of the following procedures is explained individually in this section in detail To set up virtual disks 1 Create the virtual disks and select the virtual disk options 2 Designate hot spares optional 39 40 For more information see the topic Managing Dedicated Hot Spares Initialize the virtual disks NOTE When you use one physical disk group to create multiple virtual disks all the virtual disks must be configured with the same RAID level When you define the virtual disks you can set the following virtual disk parameters RAID level Stripe element size Read policy Write policy Type of initialization Hot spare configuration E NOTE The default hard drive cache policy for a virtual disk composed with SAS hard drives is disabled and with SATA hard drives is enabled The Virtual Disk parameter cannot be changed in the BIOS Configuration Utility lt Ctrl gt R Use Dell OpenManage Storage Management for the hard drive cache setting operation The following table shows the parameters that you can configure when defining virtual disks Parameter RAID Lev
10. If there is more than one controller the main menu screen is displayed Select a controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller Use the arrow keys to highlight Controller or Disk Group Press lt F2 gt The list of available actions is displayed Select Create New VD and press lt Enter gt The Create New VD screen is displayed The cursor is on the RAID Levels option When adding a virtual disk to a Disk Group the Add VD in Disk Group screen is displayed Skip to step 11 to change the basic settings of the virtual disk Press lt Enter gt to display the possible RAID levels based on the physical disks available Press the down arrow key to select a RAID level and press lt Enter gt When creating a spanned virtual disk RAID 10 50 or 60 enter the number of physical disks per span in the PD per Span field and press lt Enter gt NOTE Creating a 22 physical disk RAID 10 VD is possible by selecting RAID 10 and populating the PD per Span field with 22 Press lt Tab gt to move the cursor to the list of physical disks Use the arrow key to highlight a physical disk and press the spacebar lt Alt gt or lt Enter gt to select the disk Select additional disks if required NOTE PERC H310 Only RAID Capable physical disks are eligible to be included in a Virtual Disk To convert physical disks to RAID Capable see the topic Converting Physical Disk To RAI
11. MN IN E kab s dtan u a W aa a ae E P at dee Edson eise SNE Using Disk R0aming unas akable kaa ata l h aa atin fo kb a aa a et ENA atlas lui aap uE a EEN EE E ec Configuring FastPath Capable Virtual Disken 15 Virtual Disk MiQration EE Migrating Virtual Disks Virtual Disk Write Cache Policies Write Back And VWrtte Through annman 17 Conditions Under Which Write Back Is Employed U u a 17 Conditions Under Which Forced Write Back With No Battery Is Emploved AEN 17 Virtual Disk Read Cache Policies L 18 Reconfiguration Of Virtual Disken 18 Fault Tolerance The SMART Feature Automatic Replace Member With Predicted Failure I U 20 Patrol Read ccseaccccevivecseecciseuccctbvel va s dodo wi ba a Ya SE deu a da a BO vias uQ ana wa e e done qas 21 Redundant Path Support For PERC H810 Only L a 21 Physical Disk Failure Detercton annann 22 Using Persistent Hot Spare Slots w 444 a ko kid kou bway dekonb da kt bi ank ak kak pin ay a n kapon ede anba a eke dede 22 Physical Disk Hot SWapping EE 22 Using Replace Member And Revertible Hot Spare I U u u 22 Controller Cache Preservation da gn pa di ke a od pak a nei Sets Pa RW pan ae ape aki dann sealed 23 Cache Preservation With Non Volatile Cache NV 23 Recovering Cache Datan vol aaa vev aid aka dan ide ai da sd ai da Veet vl ai kd ka ka di ai ki ka e ak a 23 Battery Transparent Learn Cvcle ENEE 23 TLC Time Frame ad kin nt
12. Stripe element4 Parity 1 4 Parity 1 4 Stripe element5 Stripe element 6 Parity 5 8 Parity 5 8 Stripe element 7 Stripe element 8 Parity 9 12 Parity 9 12 Stripe element 9 Stripe element 10 Stripe element 11 Stripe element 12 Stripeelement13 Stripeelement14 Parity 13 16 Parity 13 16 Stripe element 15 Stripeelement 16 Figure 9 Example of Dual Distributed Parity RAID 6 K NOTE Parity is distributed across all disks in the array 87
13. Vendor name Physical disk state Enclosure Position Slot Position Disk Group Properties Number of virtual disks VD e Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Virtual Disk Actions The following table describes the actions you can perform on virtual disks For procedures you can use to perform the actions see Virtual Disk Management Table 6 Virtual Disk Actions Action Description Create a new virtual disk Creates a new virtual disk from one or more physical disks You can configure hot spares when you create a virtual disk Manage dedicated hot Creates or deletes a hot spare that you can dedicate to a single redundant virtual disk spares Initialize a virtual disk Initializes the selected virtual disk You must initialize every virtual disk that is configured You can perform a fast initialization or a full initialization Check data consistency Verifies the correctness of the redundancy data in the selected virtual disk The option is on a virtual disk available only if RAID level 1 5 6 10 50 or 60 is used The PERC H310 H710 H710P or H810 cards automatically correct any differences found in the data Display or update virtual Displays the properties of the selected virtual disk You can modify the cache write policy disk parameters and read policy from the menu Manage preserved Preserves the dirty cache f
14. Write Cache S M A R T state Physical Disk operation Max Device Link Rate e Negotiated Link Rate Dell Certified Disk Physical Disk Actions The following table describes the actions you can perform on physical disks For procedures that can be used to perform the actions see the topic Physical Disk Management PD Mgmt Table 8 Physical Disk Actions Action Rebuild Replace Member LED Blinking Force Online Force Offline Make Global HS 52 Description Regenerates all data to a replacement disk in a redundant virtual disk RAID level 1 5 6 10 50 or 60 after a disk failure A disk rebuild normally occurs without interrupting normal operations on the affected virtual disk Replaces the disk in the virtual disk with another disk that can be selected Indicates when physical disks are being used to create a virtual disk You can choose to start or stop the LED blinking Changes the state ofthe selected physical disk to online Changes the state of the selected physical disk so that it is no longer part of a virtual disk Designates the selected physical disk as a global hot spare A global hot spare is part of a pool for all virtual disks controlled by the controller Action Description Remove HS Removes a dedicated hot spare from its disk group or a global hot spare from the global pool of hot spares Rebuild Select Rebuild to rebuild one or more failed physical disks For informa
15. ap kk nef pa tb unaq aaa aqasha aqasha assays 23 Conditions For Replacing The Battery a 23 3 Deploying The PERC Card Removing The PERC Controller n Installing The PERC Controller EEN Support For Internal Multiple Controllers I M 28 Setting Up Redundant Path Support On The PERC H810 Adapter U u 28 Reverting To Single Path Support From Redundant Path Support For PERC Hin 28 4 Driver installat OTe u e n n cadets des a asal Raha ahd ee okipan a 31 Pre Installation Requirements For Windows Driver Installation U 31 Creating The Device Driver Media For Windows Driver Installapon EE 31 Downloading Drivers From The Dell Systems Service And Diagnostic Tools Media For WindoWs 31 Downloading Drivers From The Dell Support Website For Windows 32 Installing Driver During a Windows Server 2008 2008 R2 Installation nana sans nnosonoannon 32 Installing Windows Server 2008 2008 R2 For A New RAID Controller EE 32 Updating Existing Windows Server 2008 Or Windows Server 2008 RH7 EE 33 Updating The Linux Drive ti u ee ek an pap ten kod e sake nan sees E a da a ke apaku aaa a uH a 33 Installing Or Updating The RPM Driver Package With DKMS Support 34 Installing Or Updating The RPM Driver Package With KMOD Support 34 Installing Or Updating The RPM Driver Package With KMP Support 34 5 Management Applications For PERC Cards 37 Dell OpenMana
16. configuration intact Initializing a virtual disk destroys all data on the virtual disk k NOTE The initialization operations mentioned here are not applicable for Non RAID disks Background Initialization Of Virtual Disks Background Initialization BGI is an automated process that writes the parity or mirror data on newly created virtual disks BGI does not run on RAID 0 virtual disks You can control the BGI rate in the Dell OpenManage storage management application Any change in the BGI rate does not take effect until the next BGI run K NOTE You cannot disable BGI permanently If you cancel BGI it automatically restarts within five minutes For information on stopping BGI see the topic Stopping Background Initialization K NOTE Unlike full or fast initialization of virtual disks background initialization does not clear data from the physical disks K NOTE CC BGI typically causes some loss in performance until the operation completes Consistency Check CC and BGI perform similar functions in that they both correct parity errors However CC reports data inconsistencies through an event notification but BGI does not You can start CC manually but not BGI Full Initialization Of Virtual Disks Performing a full initialization on a virtual disk overwrites all blocks and destroys any data that previously existed on the virtual disk Full initialization of a virtual disk eliminates the need for the virtual disk to unde
17. declared failed then the firmware runs learn cycles in subsequent reboots until the battery is replaced The virtual disk then transitions to Write Back mode 23 24 Deploying The PERC Card A CAUTION Many repairs may only be done by a certified service technician You should only perform ka ka troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the system NOTE For information on removing and reinstalling system parts see the Owner s Manual of the system at dell com support manuals NOTE For more information on your storage controller see the relevant storage controller documentation at dell com support manuals This document provides a set of high level installation and removal instructions for the following Dell PowerEdge RAID Controllers PERC PERC H310 Adapter PERC H310 Mini Monolithic PERC H310 Mini Blade PERC H710 Adapter PERC H710P Adapter PERC H710 Mini Monolithic PERC H710P Mini Monolithic PERC H710 Mini Blade PERC H710P Mini Blade PERC H810 Adapter Removing The PERC Controller To remove the PERC controller 1 2 3 Perform a controlled shutdown of the system and attached peripherals Disconnect the system from the electrical
18. disk from a degraded state you must replace the failed physical disk and rebuild it Once the rebuilding process is complete the virtual disk state changes from degraded to optimal For information on rebuilding the disk see the topic Performing A Manual Rebuild Of An Individual Physical Disk Memory Errors Memory errors can corrupt cached data so the controllers are designed to detect and attempt to recover from the memory errors Single bit memory errors can be handled by the controller and do not disrupt normal operation A notification is sent if the number of single bit errors exceeds a threshold value Multi bit errors are more serious as they result in corrupted data and data loss The following are the actions that occur in the case of multi bit errors If a multi bit error occurs while accessing data in the cache when the controller is started with dirty cache the controller discards the cache contents The controller generates a warning message to the system console to indicate that the cache was discarded and generates an event If a multi bit error occurs at run time either in code data or in the cache the controller stops The controller logs an event to the controller s internal event log and a message during POST is displayed indicating a multi bit error has occurred K NOTE In case of a multi bit error contact Dell Technical Support Preserved Cache State The controller preserves the dirty cache from a virtual d
19. hot spare is reverted to being a ready hot spare This allows hot spares to remain in specific enclosure slots While the controller is reverting the hot spare the virtual disk remains optimal K NOTE The controller automatically reverts a hot spare only if the failed disk is replaced with a new disk in the same slot If the new disk is not placed in the same slot a manual Replace Member operation can be used to revert a previously commissioned hot spare K NOTE A Replace Member operation typically causes a temporary impact to disk performance Once the operation completes performance returns to normal 22 Controller Cache Preservation The controller is capable of preserving its cache in the event of a system power outage or improper system shutdown The PERC H710 H710P and H810 controllers are attached to a Battery Backup Unit BBU that provides backup power during system power loss to preserve the controller s cache data Cache Preservation With Non Volatile Cache NVC In essence the NVC module allows controller cache data to be stored indefinitely If the controller has data in the cache memory during a power outage or improper system shutdown a small amount of power from the battery is used to transfer cache data to a non volatile flash storage where it remains until power is restored and the system is booted Recovering Cache Data The dirty cache LED that is located on the H710 and H810 cards can be used to determine if c
20. in optimal state Clear the foreign configuration using lt Ctrl gt R or Dell OpenManage Server Administrator Storage Management A CAUTION The physical disk goes to Ready state when you clear the foreign configuration If you insert a physical disk that was previously a member of a virtual disk in the system and that disk s previous location has been taken by a replacement disk through a rebuild you must manually remove the foreign configuration flag of the newly inserted disk Previous Configuration Cleared Or Missing Error Message Error Message Probable Cause Corrective Action Previous configuration s cleared or missing Importing configuration created on XX XX XX XX Press any key to continue or C to load the configuration utility The message indicates that the controller and physical disks have different configurations You can use the BIOS Configuration Utility lt Ctrl gt lt R gt to clear the foreign configuration Invalid SAS Topology Detected Error Message Error Message Probable Cause Corrective Action Invalid SAS topology detected Please check your cable configurations repair the problem and restart your system The SAS cables for your system are improperly connected Check the cable connections and fix problems if any Restart the system Multibit ECC Errors Detected Error Messages Error Message 76 K NOTE The following error is specific to the PERC H710 contr
21. multiple disks become simultaneously inaccessible Corrective Multiple physical disk errors in a single array typically indicate a failure in cabling or Action connection and could involve the loss of data You can recover the virtual disk after multiple physical disks become simultaneously inaccessible Perform the following steps to recover the virtual disk A CAUTION Follow the safety precautions to prevent electrostatic discharge 1 Turn off the system check cable connections and reseat physical disks 2 Ensure that all the disks are present in the enclosure 3 Turn on the system and enter the BIOS Configuration Utility lt Ctrl gt lt R gt utility 4 Import the foreign configuration 5 Press lt F gt at the prompt to import the configuration or press lt C gt to enter the BIOS Configuration Utility lt Ctrl gt lt R gt and either import or clear the foreign configuration If the virtual disk is redundant and transitioned to Degraded state before going Offline a rebuild operation starts automatically after the configuration is imported If the virtual disk has gone directly to the Offline state due to a cable pull or power loss situation the virtual disk is imported in its Optimal state without a rebuild occurring NOTE You can use the BIOS Configuration Utility lt Ctrl gt lt R gt or Dell OpenManage storage management application to perform a manual rebuild of multiple physical disks For information on rebuildin
22. of read and write 10s across the supported RAID levels 15 Table 2 FastPath Eligibility Across Supported RAID Levels RAID 0 RAID 1 RAID 5 RAID 6 Read Yes Yes Yes Yes Optimal and Optimal and Degraded Optimal and Degraded Degraded Write Yes No No No In addition FastPath capable virtual disks are characterized by the following The presence of CacheCade virtual disks on a controller disables the FastPath capability of all eligible HDD virtual disks Eligible SSD virtual disks are still FastPath capable Secured virtual disks are not FastPath capable The Physical Disk Power Management feature is not applicable to FastPath capable virtual disks The addition or removal of a redundant path does not affect the FastPath capability of virtual disks Virtual Disk Migration The PERC H710 H710P and H810 cards support migration of virtual disks from one controller to another without taking the target controller offline The controller can import RAID virtual disks in optimal degraded or partially degraded states You cannot import a virtual disk that is in an offline state Disk migration pointers Supports migration of VDs from PERC H700 and H800 to PERC H710P and H810 Supports migration of volumes created within H710 H710P or H810 Supports migration of volumes created on H310 to H710 H710P or H810 Does not support migration from H700 or H800 to H310 Does not support migration from H710 H710P or H810 t
23. screen Press lt Tab gt to move the cursor to the Select Boot Device in the Settings box Press the down arrow key to display a list of virtual disks and Non RAID physical disks PERC H310 only Use the down arrow key to highlight a virtual disk or Non RAID physical disk PERC H310 only Press lt Enter gt to select the disk Press lt Tab gt to move the cursor to the Apply button and then press lt Enter gt to apply the selection Boot support is enabled for the selected controller Enabling BIOS Stop On Error The option BIOS Stop on Error is used to stop the system from booting if there are BIOS errors Perform the following steps to enable BIOS Stop on Error 1 2 3 Press lt Ctrl gt lt N gt to access the Ctrl Mgmt menu screen Press lt Tab gt to move the cursor to Enable BIOS Stop on Error in the Settings box Press the spacebar to select Enable BIOS Stop on Error An X is displayed beside Enable BIOS Stop on Error Press lt Tab gt to move the cursor to the Apply button and then press lt Enter gt to apply the selection The controller BIOS is enabled To disable Enable BIOS Stop on Error use the spacebar to de select Enable BIOS Stop on Error then select Apply and press lt Enter gt Enabling Auto Import If there is a native configuration present on the controller the option Enable Auto Import automatically imports every online foreign configuration during boot without having the need to access the BIOS
24. support BIOS Error Messages The controller BIOS read only memory ROM provides Int 13h functionality disk 1 0 for the virtual disks connected to the controller You can boot from or access the physical disks without a driver Discovery Error Message Error Message Probable Cause Corrective Action A discovery error has occurred please power cycle the system and all the enclosures attached to this system This message indicates that discovery did not complete within 120 seconds The SAS cables for your system might be improperly connected Check the cable connections and fix any problems Restart the system Extra Enclosure Error Message Error Message Probable Cause Corrective Action There are X enclosures connected to connector Y but only maximum of 4 enclosures can be connected to a single SAS connector Please remove th xtra enclosures then restart your system This message is displayed when the BIOS detects more than four enclosures connected to a single SAS connector You must remove all additional enclosures and restart your system Cache Data Lost Error Message Error Message Probable Cause Cache data was lost but the controller has recovered This could be due to the fact that your controller had protected cache after an unexpected power loss and your system was without power longer than the battery backup time Press any key to continue or C to load the configuration utilit
25. turned on when redundant paths are detected The ability to load balance I 0 can be disabled using the Dell OpenManage storage management application To set up your hardware to support redundant paths see the topic Setting Up Redundant Path Support On The PERC H810 Adapter K NOTE This support for redundant paths refers to path redundancy only and not to controller redundancy 21 Physical Disk Failure Detection Failed physical disks are detected and rebuilds automatically start to new disks that are inserted into the same slot Automatic rebuilds can also happen transparently with hot spares If you have configured hot spares the controllers automatically try to use them to rebuild failed physical disks Using Persistent Hot Spare Slots E NOTE The persistent hot spare slot feature is disabled by default The PERC H310 H710 H710P and H810 cards can be configured so that the system backplane or storage enclosure disk slots are dedicated as hot spare slots This feature can be enabled using the Dell OpenManage storage management application Once enabled any slots with hot spares configured automatically become persistent hot spare slots If a hot spare disk fails or is removed a replacement disk that is inserted into the same slot automatically becomes a hot spare with the same properties as the one it is replacing If the replacement disk does not match the disk protocol and technology it does not become a hot spare For mor
26. 10 H710P or H810 controller This can be a useful way to e Create a disk image that can be imported and booted on a different system e Assist in software or configuration testing where half of the mirror can be removed to ensure configuration consistency K NOTE The Break Mirror operation is not available within the booted operating system environment It is only available in the BIOS lt Ctrl gt lt R gt utility and the UEFI RAID configuration utility Break Mirror In BIOS Configuration Utility The RAID1 VD that you are to split must be in an optimal state and it cannot be running any other background tasks To use the Break Mirror feature from the BIOS Configuration Utility lt Ctrl gt R perform the following steps 1 During boot up press lt Ctrl gt lt R gt when prompted by the BIOS screen If there is more than one controller in the system choose the controller The VD Mgmt screen is displayed by default 2 Highlight the appropriate Disk Group 3 Press lt F2 gt to display the available actions 4 Choose Break Mirror and press lt Enter gt A dialog is displayed describing the operation and asking if you are sure you want to perform the operation 5 Select Yes to continue The exported disk exporting configuration spins down and the hard drive status LED starts flashing to identify which drive must be pulled The remaining disk exporting configuration is in a degraded state until the missing member i
27. 8 R2 media Follow the on screen instructions until you reach Where do you want to install Windows Server 2008 window and then select Load driver The system prompts you to insert the media Insert the installation media and browse to the proper location Select the appropriate PERC H310 H710 H710P or H810 card from the list click Next and continue installation Installing Windows Server 2008 2008 R2 For A New RAID Controller Perform the following steps to configure the driver for the RAID controller on a system that already has Windows installed 1 2 ea ea p 32 Turn off the system Install the new RAID controller in the system For detailed instructions on installing and cabling the RAID controller in the system see the topic Deploying The PERC Card Turn on the system The Found New Hardware Wizard screen displays the detected hardware device Click Next On the Locate device driver screen select Search for a suitable driver for my device and click Next Browse and select the drivers from the Locate Driver Files screen Click Next The wizard detects and installs the appropriate device drivers for the new RAID controller Click Finish to complete the installation 9 Reboot the system when prompted Updating Existing Windows Server 2008 Or Windows Server 2008 R2 K NOTE Close all applications on your system before you update the driver 1 2 Insert the media CD DVD or USB drive containing
28. 8 port with LSI 2008 chipset Yes Yes 1 GB DDR3 1333 Mhz Write Back Write Through Adaptive Read Ahead No Read Ahead Read Ahead Specification H310 H710 H710P H810 Maximum number of 8 8 8 8 spans per Disk Group Maximum number of 16 16 16 16 Virtual Disks per Disk Group Online Capacity Yes Yes Yes Yes Expansion Dedicated and Yes Yes Yes Yes Global Hot Spares Hot Swap Devices Yes Yes Yes Yes Supported Hardware XOR Yes Yes Yes Yes Engine Redundant Path Yes Yes Yes Yes Support Supported Operating Systems The PERC H310 H710 and H710P cards support the following operating systems Microsoft Windows Server 2012 Microsoft Windows Server 2008 including Hyper V virtualization Microsoft Windows Server 2008 R2 and later Red Hat Enterprise Linux version 5 8 and later 32 bit and 64 bit Red Hat Enterprise Linux version 6 2 and later 64 bit SUSE Linux Enterprise Server version 10 SP4 64 bit SUSE Linux Enterprise Server version 11 SP2 64 bit VMware ESX 4 1 and ESXi 4 1 Update 2 and later VMware ESXi 5 0 and later E NOTE For the latest list of supported operating systems and driver installation instructions see the system documentation at dell com support manuals For specific operating system service pack requirements see the Drivers and Downloads section at dell com support manuals Getting Help Contacting Dell ka NOTE Dell provides several online and telephone based support and servi
29. 9 there is a security key present Select the Secure VD option as No in the Create New VD menu See the topic Creating Virtual Disks for steps on how to create an unsecured virtual disk Failure To Delete Security Key A security key is used to lock or unlock access to a security enabled component This key is not utilized in the actual encryption of data If a security key is present both secured and unsecured virtual disks may exist To delete the security key you must have a previously established security key present on the controller and there cannot be any configured secured disks If there are configured secured disks remove or delete them Failure To Instant Secure Erase Task On Physical Disks Instant Secure Erase is the process of securely erasing all data permanently on an encryption capable physical disk and resetting the security attributes It is used in a couple of scenarios such as deleting a foreign configuration in the event of a forgotten or lost passphrase or unlocking a disk that had been previously locked Instant Secure Erase can be executed only on encryption capable disks as long as the disks are not hot spares and are not configured part of a virtual disk Ensure that the conditions are met and see the topic Instant Secure Erase 70 Troubleshooting To get help with your Dell PowerEdge RAID Controller PERC H310 H710 H710P and H810 you can contact your Dell Technical Service representative or see dell com
30. Configuration Utility K NOTE Dell serial attached SCSI SAS RAID Storage Manager is not supported for SED management Dell OpenManage Storage Management The Dell OpenManage Storage Management is a storage management application for Dell systems that provides enhanced features for configuring a system s locally attached RAID and Non RAID disk storage The Dell OpenManage storage management application enables you to perform controller and enclosure functions for all supported RAID controllers and enclosures from a single graphical or command line interface without requiring the use of the controller BIOS utilities The graphical user interface GUI is wizard driven with features for novice and advanced users and detailed online help Using the Dell OpenManage storage management application you can protect your data by configuring data redundancy assigning hot spares or rebuilding failed physical disks The command line interface available on selected operating systems to perform RAID management tasks is fully featured and scriptable NOTE For more information see the De OpenManage Storage Management User s Guide at dell com support manuals BIOS Configuration Utility The BIOS Configuration Utility also known as lt Ctrl gt lt R gt is a storage management application embedded on the PERC H310 H710 H710P and H810 cards that configures and maintains RAID disk groups and virtual disks lt Ctrl gt lt R gt is independent of the o
31. D Capable For PERC H310 Press lt Tab gt to move the cursor to the Basic Settings box Set the virtual disk size in the VD Size field The virtual disk size is displayed in GB format Press lt Tab gt to access the VD Name field and type a virtual disk name Press lt Tab gt to move the cursor to Advanced Settings 41 Press the spacebar to make the settings active so that you can change them An X is displayed beside Advanced Settings The settings are the stripe element size read policy and write policy You can also choose advanced options such as forcing the cache policy to Write Back initializing the virtual disk and configuring a dedicated hot spare The defaults parameters are displayed You can accept the defaults or change them To change the virtual disk parameters see Virtual Disk Parameters and Descriptions in Setting Up Virtual Disks Selecting Virtual Disk Parameters To select the virtual disk parameters 1 2 3 4 Press lt Tab gt to move the cursor to the parameters you want to change Press the down arrow key to open the parameters and scroll down the list of settings To change the stripe element size press lt Tab gt to highlight Stripe Element Size Press lt Enter gt to display the list of stripe element sizes 64 KB 128 KB 256 KB 512 KB and 1024 KB Press the down arrow key to highlight the desired option and press lt Enter gt The default stripe element size is 64 KB If you need to cha
32. Dell PowerEdge RAID Controller PERC H310 H710 H710P and H810 User s Guide Regulatory Model UCSA 801 UCSB 800 UCSM 800 UCPA 801 UCPB 800 UCPM 800 and UCPE 800 Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer CAUTION A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem A WARNING A WARNING indicates a potential for property damage personal injury or death 2013 Dell Inc All Rights Reserved Trademarks used in this text Dell the Dell logo Dell Boomi Dell Precision OptiPlex Latitude PowerEdge PowerVault PowerConnect OpenManage EqualLogic Compellent KACE FlexAddress Force10 Venue and Vostro are trademarks of Dell Inc Intel Pentium Xeon Core and Celeron are registered trademarks of Intel Corporation in the U S and other countries AMD is a registered trademark and AMD Opteron AMD Phenom and AMD Sempron are trademarks of Advanced Micro Devices Inc Microsoft Windows Windows Server Internet Explorer MS DOS Windows Vista and Active Directory are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Red Hat and Red Hat Enterprise Linux are registered trademarks of Red Hat Inc in the United States and or other countries No
33. Dell PowerEdge RAID Controller PERC H710 H710P and H810 cards support CacheCade a feature that can improve application performance by increasing read caching capacity The CacheCade feature makes use of high performing solid state disks SSDs as a secondary tier of cache CacheCade provides faster reads and maximizes transactional I O performance k NOTE PERC H310 does not support Cachecade The use of SSDs for caching allows a large quantity of data to be present in the cache resulting in performance improvement in read intensive applications Some examples of read intensive applications include online transaction processing OLTP file server and web server workloads CacheCade allows for an increase in the I O performance of hard disk drive HDD based disk groups with the assistance of SSD technology CacheCade Virtual Disk Characteristics The following are the CacheCade virtual disk characteristics Support for CacheCade virtual disks exists only on controllers containing 1 GB of Non Volatile NV Cache e CacheCade virtual disks can only be created with SSDs The maximum combined size of CacheCade virtual disks is 512 GB NOTE Multiple CacheCade virtual disks may be created but they are combined to operate as a single cache pool up to the maximum size Data on virtual disks containing secured Self Encrypting Disks SEDs or SSDs will not be cached by CacheCade K NOTE Data on VDs with unsecured SEDs can be cach
34. Install the driver package using the command rpm ihv megaraid_sas version noarch rpm K NOTE Use rom Uvh package name when updating an existing package 4 Ifthe previous device driver is in use you must reboot the system for the updated driver to take effect 5 Verify that the driver has been loaded with the following system commands modinfo megaraid_sas and dkms status Installing Or Updating The RPM Driver Package With KMOD Support K NOTE This procedure is applicable for Red Hat Enterprise Linux 6 SP2 Perform the following steps to install the RPM package with KMOD support 1 Uncompress the gzipped tarball driver release package 2 Install the driver package using the command rpm ihv kmodmegaraid_ sas lt version gt rpm K NOTE Use rpm Uvh lt package name gt when upgrading an existing package 3 Ifthe previous device driver is in use you must reboot the system for the updated driver to take effect 4 Verify that the driver has been loaded with the following system commands modinfo megaraid_sas Installing Or Updating The RPM Driver Package With KMP Support K NOTE This procedure is applicable for SUSE Enterprise Linux 11 SP2 Perform the following steps to install the RPM package with KMP support 1 Uncompress the gzipped tarball driver release package 2 Install the driver package using the command rpm ihv kmpmegaraid_ sas version rpm K NOTE Use rpm Uvh lt package name gt w
35. OS Error M8 S8g8 S__ ket av ee kwen ank done ENEE daki ped page god a des wan kaka oi gad ya ak ve aaa wan gi ewo is dan DiSGovery Error M6SS800 u T uu a stun kai es bad ski don pon aaa u a Ee een Extra Enclosure Error Message NEEN Cache Data Lost Error Message Missing Disks In Virtual Disk Error Message EEN Previous Configuration Of Disks Removed Error Message Missing Virtual Disks Error Message l L L U S sns Dirty Cache Data Error Message BIOS Disabled Error Message Drive Configuration Changes Error Message Adapter At Baseport Not Responding Error Message Offline Or Missing Virtual Drives With Preserved Cache Error Message Virtual Disks Offline Error Message Virtual Disks Degraded Error Message I U Q n Virtual Disks Partially Degraded Error Message Memory Or Battery Problem Error Message I I a Firmware Fault State Error Message Foreign Configuration Found Error Message I a Foreign Configuration Not Found In lt Ctrl gt lt R gt Error Message Previous Configuration Cleared Or Missing Error Message Invalid SAS Topology Detected Error Message I U u Multibit ECC Errors Detected Error Messages Configured Disks Removed Or Not Accessible Error Message Battery Discharged Or Disconnected Error Message Degraded State Of Virtual Disken Memory Ode Preserved Cache EE General ISSU OS seed deiere ee ere k dan Va Masta dh ta aoe A awa dede PERC Card Has Yello
36. OTE You must have all the drives in the system before you perform the import operation Select Import to merge the foreign configurations with the existing configuration on the controller or Clear to delete the foreign configuration s from the re inserted disk s If you select Import all drives that were pulled before the virtual disk became offline are imported and then automatically rebuilt NOTE Start a consistency check immediately after the rebuild is complete to ensure data integrity for the virtual disks For more information about checking data consistency see the topic Checking Data Consistency If the physical disks in a non redundant virtual disk are removed the controller considers the disks to have foreign configurations Perform the following steps a b c Select Foreign Configuration View to display the complete foreign configuration information Press lt F2 gt to display the options Import and Clear Select Import to import the foreign configurations to the virtual disk or Clear to delete the foreign configuration s from the re inserted disk s No rebuilds occur after the import operation because there is no redundant data to rebuild the disks with 45 Break Mirror A Break Mirror operation is an operation that can be performed only on RAIDI arrays It provides a way to split the mirror and spin down one of the hard disks which can then be imported into the configuration of a different PERC H310 H7
37. S and SATA hard drives within a virtual disk is not supported Also combining hard drives and solid state drives SSDs within a virtual disk is not supported After the security key is established perform the steps outlined in the topic Creating Virtual Disks to create a virtual disk To secure the virtual disk navigate to the Secure VD option at the bottom left area of the Create New VD screen E NOTE All virtual disks added to a secured Disk Group are secured Securing Pre Existing Virtual Disks H an unsecured virtual disk was created on a controller you can secure the virtual disk as long as the following conditions are met e The controller has a security key present All the physical disks in the virtual disk are SED Perform the following steps when securing a pre existing virtual disk on a secured controller 1 During the host system bootup press lt Ctrl gt R when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed 2 Select a controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller Use the arrow keys to highlight the Disk Group number Press lt F2 gt to display a menu of the available actions 67 5 Highlight the Secure Disk Group option and press Enter K NOTE If you select to secure a Disk Group all VDs part of the Disk Group are secured
38. SAS and SATA SSDs within a CacheCade virtual disk is not supported K NOTE To avoid inefficient use of space it is recommended that CacheCade volumes are created with drives of the same size Larger disk sizes are truncated to the size of the smallest contributing disk similar to RAID 0 To create a CacheCade virtual disk 1 During host system bootup press lt Ctrl gt lt R gt when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there are more than one controller the main menu screen is displayed 2 Selecta controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller w Use the arrow keys to highlight Controller P Press lt F2 gt The list of available actions is displayed 5 Select Create CacheCade Virtual Disk and press lt Enter gt The Create CacheCade Virtual Disk screen is displayed The cursor is on the first SSD listed in the Select SSD section 6 Select the desired SSD s As each new SSD is selected the CacheCade Virtual Disk Size changes to reflect the new size K NOTE You cannot specify the size of the virtual disk Press lt Tab gt to move the cursor to the CacheCade Virtual Disk Name field Enter a name if required go After you specify the virtual disk name select OK to save the selection or select Cancel to cancel the selection After the CacheCade virtual disk is created successfully it is listed i
39. Securing Pre Existing Virtual Disks H an unsecured virtual disk was created on a controller you can secure the virtual disk as long as the following conditions are met e The controller has a security key present e All the physical disks in the virtual disk are SED Perform the following steps when securing a pre existing virtual disk on a secured controller 1 During the host system bootup press lt Ctrl gt R when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed 2 Select a controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller 3 Use the arrow keys to highlight the Disk Group number 4 Press F2 to display a menu of the available actions 5 Highlight the Secure Disk Group option and press lt Enter gt k NOTE If you select to secure a Disk Group all VDs part of the Disk Group are secured Importing Or Clearing Secured Foreign Configurations And Secure Disk Migration Secured virtual disks created on a PERC H700 H800 or H710 H710P H810 card can be migrated to another PERC H710 H710P or H810 card A virtual disk secured with a security key different from the current controller security key cannot be imported without authentication of the original passphrase used to secure them When importing secured virtual disk s created with a different security key the sec
40. The new resources are immediately used after the addition There are two methods to reconfigure CacheCade virtual disks e Automatic reconfiguration of cachecade virtual disks e Manual reconfiguration of cachecade virtual disks Automatic Reconfiguration Of CacheCade Virtual Disks A CacheCade virtual disk that is made up of more than one SSD is automatically reconfigured upon a removal or failure of a member SSD The virtual disk retains an Optimal state and adjusts its size to reflect the remaining number of member disks If auto rebuild is enabled on the controller when a previously removed SSD is inserted back into the system or replaced with a new compatible SSD the CacheCade automatically reconfigures and adjusts its size to reflect the addition of the member SSD The number of SSDs to be removed from a CacheCade virtual disk cannot equal the total number of SSDs currently in the CacheCade virtual disk After the automatic reconfiguration and resizing of a CacheCade virtual disk the new virtual disk size is displayed in both the BIOS Configuration Utility as well as in the OpenManage storage management application CAUTION If a disk is removed from a CacheCade virtual disk the associated slot for that disk is a hot slot for the CacheCade volume Any compatible disk inserted into that slot is automatically added to the CacheCade virtual disk Any preexisting data on that drive is lost NOTE Disks inserted into a CacheCade hot slot mus
41. ache data is being preserved If a system power loss or improper system shutdown has occurred 1 Restore the system power Boot the system To enter the BIOS Configuration Utility select Managed Preserved Cache in the controller menu If there are no virtual disks listed all preserved cache data has been written to disk successfully Battery Transparent Learn Cycle K NOTE Batteries are only supported on PERC H710 H710P and H810 cards A transparent learn cycle is a periodic operation that calculates the charge that is remaining in the battery to ensure there is sufficient energy The operation runs automatically and causes no impact to the system or controller performance The controller automatically performs the Transparent Learn Cycle TLC on the battery to calibrate and gauge its charge capacity once every 90 days The operation can be performed manually if required NOTE Virtual disks stay in Write Back mode if enabled during transparent learn cycle When the TLC completes the controller sets the next TLC to 90 days TLC Time Frame The time frame for completion of a learn cycle is a function of the battery charge capacity and the discharge and charge currents used For PERC H710 or H810 cards the expected time frame for completion of a learn cycle is approximately seven hours Conditions For Replacing The Battery The PERC battery is marked Failed when the state or health of the battery is declared bad If battery is
42. agement menu Instant Secure Erase Permanently erases all data on an encryption capable physical disk and resets the security attributes For more information on the Physical Disk Management screen and Virtual Disk Management screen see the topics Physical Disk Management PD Mgmt and Virtual Disk Management respectively Local Key Management LKM You can use LKM to generate the key ID and the passphrase required to secure the virtual disk You can secure virtual disks change security keys and manage secured foreign configurations using this security mode K NOTE Under LKM you are prompted for a passphrase when you create the key 65 Creating A Security Key Perform the following steps to create a security key on the controller K NOTE There is no passphrase backup option when you create a security key you need to remember your passphrase During the host system boot up press lt Ctrl gt lt R gt when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed Select a controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller Use the arrow keys to highlight Security Key Management Press lt F2 gt to display the actions you can perform Select Create Key and press Enter The Create Security Key screen is displayed The cursor is at the Security Key Ident
43. and BIOS You can perform functions such as enable or disable the controller BIOS enable or disable the BIOS during bootup in the event of BIOS errors and enable or disable the option to Auto Import In addition you can select a virtual disk from which to boot and select default settings Controller Management Actions The following table describes the actions you can perform on the Ctrl Mgmt screen Table 10 Controller Management Options Option Description Enable Controller BIOS Select the option to enable the controller BIOS If the boot device is on the RAID controller the BIOS must be enabled Disable the BIOS to use other boot devices O In a multiple controller environment you can enable BIOS on multiple controllers However if you want to boot from a specific controller then enable the BIOS on that 53 Option Description controller and disable it on the other controllers The system can then boot from the BIOS enabled controller Enable BIOS Stop On Error Select the option to stop the system BIOS during bootup if there are BIOS errors The option enables you to enter the configuration utility to resolve the problem Select Bootable Device Select the option to specify a virtual disk as the boot disk on the controller NOTE For PERC H310 the option may be a Virtual Disk or Non RAID drive The option is displayed if you have built virtual disks Enable Auto Import Attempts to import every online foreign conf
44. and enter the system service tag to get your system documentation Dell PowerEdge RAID Controller PERC H310 H710 H710P and H810 User s Guide Discusses features installation management and troubleshooting of PERC cards Product specific Dell PowerVault Owner s Manual Discusses features repair management of PowerVault system Product specific Dell PowerEdge Owner s Manual Discusses features repair management of PowerEdge system Documentation Feedback If you have feedback for this document write to documentation_feedback dell com Alternatively you can click on the Feedback link in any of the Dell documentation pages fill up the form and click Submit to send your feedback 11 Features Some of the features discussed for PowerEdge RAID Controller PERC H310 H710 H710P and H810 cards are Physical Disk Power Management e Types of Virtual Disk Initialization e Consistency Checks Disk Roaming Fast Path e Virtual Disk Migration Reconfiguration Of Virtual Disks e Fault Tolerance e Patrol Read Physical Disk Power Management Physical disk power management is a power saving feature of the PERC H310 H710 H710P and H810 cards The feature allows disks to be spun down based on disk configuration and UU activity The feature is supported on all rotating SAS and SATA disks and includes unconfigured configured and hot spare disks The physical disk power management feature is disabled by d
45. ation before importing After you view the foreign configuration you can either clear or import to the RAID controller NOTE Before you import the foreign configuration review the configuration on the screen to ensure that it is the end result that you require You can use the Foreign Configuration View screen to manage foreign configurations in the following cases Allthe physical disks in a configuration are removed and re inserted Some of the physical disks in a configuration are removed and re inserted Allthe physical disks in a virtual disk are removed but at different times and then re inserted 44 The physical disks in a non redundant virtual disk are removed The following constraints apply to the physical disks that are considered for import The disk state of a physical disk can change from the time the foreign configuration is scanned to when the actual import occurs The foreign import occurs only on disks that are in the Unconfigured Good state Disks in the failed or offline state cannot be imported The firmware does not allow you to import more than eight foreign configurations Perform the following procedures on the Foreign Configuration View screen to manage foreign configurations in each specific case 1 If all or some of the physical disks in a configuration are removed and reinserted the controller considers the disks to have foreign configurations Perform the following steps a b c
46. ce options If you do not have an active Internet connection you can find contact information on your purchase invoice packing slip bill or Dell product catalog Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues Go to dell com contactdell Select your country or region from the interactive world map When you select a region the countries for the selected regions are displayed Select the appropriate language under the country of your choice Select your business segment The main support page for the selected business segment is displayed Select the appropriate option depending on your requirement Related Documentation ka E ka ka NOTE For all storage controllers and PCle SSD documents go to dell com support manuals then Choose from a list of all Dell products Servers Storage amp Networking Dell Adapters NOTE For all Dell OpenManage documents see dell com support manuals then Choose from a list of all Dell products Software Electronics amp Peripherals Software Enterprise System Management NOTE For all operating system documents go to dell com support manuals then Choose from a list of all Dell products Software Electronics amp Peripherals Software Operating System NOTE For all PowerEdge and PowerVault documentation go to dell com support manuals
47. d unlock access to encryption capable physical disks In order to take advantage of this feature you must 1 Have SEDs in your system 2 Create LKM a security key Security Key Management In The BIOS Configuration Utility The Dell OpenManage storage management application and the BIOS Configuration Utility lt Ctrl gt lt R gt of the controller allow security keys to be created and managed as well as create secured virtual disks The following section describes the menu options specific to security key management and provide detailed instructions to perform the configuration tasks The contents of the following section apply to the BIOS Configuration Utility lt Ctrl gt lt R gt For more information on the management applications see the topic Management Applications For PERC Cards The Virtual Disk Management screen VD Mgmt is the first screen that is displayed when you access a RAID controller from the main menu screen on the BIOS Configuration Utility lt Ctrl gt lt R gt The following are security related actions you can perform through the virtual disk management menu Security Key Management Creates changes or deletes the security settings on a controller Secure Disk Group Secures all Virtual Disks in Disk Group The Physical Disk Management screen PD Mgmt displays physical disk information and action menus The following are security related actions you can perform through the physical disk man
48. d want to during operating include the drivers system installation Updating existing Use this method if the operating system and the PERC H310 H710 H710P and H810 family of drivers controllers are already installed and you want to update to the latest drivers Pre Installation Requirements For Windows Driver Installation Before you install the operating system e Read the Microsoft Getting Started document that shipped with your operating system e Ensure that your system has the latest BIOS firmware and driver updates If required download the latest BIOS firmware and driver updates fromdell com support e Create a device driver media diskette USB drive CD or DVD Creating The Device Driver Media For Windows Driver Installation Use one of the following two methods to create the device driver media e Downloading drivers from the Dell systems service and diagnostic tools media for Windows e Downloading drivers from the Dell support website for Windows Downloading Drivers From The Dell Systems Service And Diagnostic Tools Media For Windows To download drivers from the Dell Systems Service and Diagnostic Tools media 1 Insert the Dell Systems Service and Diagnostics Tools media in a system The Welcome to Dell Service and Diagnostic Utilities screen is displayed Select your system model and operating system Microsoft Windows Server 2008 Click Continue 31 From the list of drivers displayed select the dr
49. dell com support Updating The Linux Driver NOTE PERC H310 H710 H710P H810 PERC H700 H800 cards and both the PERC 5 and PERC 6 family of controllers use the same driver and do not require separate driver installations Use the procedures in this section to update the driver for Linux To ensure that you have the current version of the driver download the updated Linux driver from dell com support k NOTE The driver update disk DUD images are created only for those operating system releases in which the native in box driver is insufficient for installation In the event that an operating system is being installed with a corresponding DUD image follow the instructions below If not proceed with using the native device driver and then skip to the topic Installing or Updating the RPM Driver Package With DKMS Support 33 Installing Or Updating The RPM Driver Package With DKMS Support K NOTE This procedure is applicable for Red Hat Enterprise Linux 5 SP7 and SUSE Enterprise Linux 10 SP4 NOTE For SUSE Enterprise Linux 10 SP4 immediately following the operating system installation download the latest driver from dell com support and update the driver using the procedures detailed in this section Perform the following steps to install the RPM package with DKMS support 1 Uncompress the gzipped tarball driver release package Install the DKMS package using the command rpm ihv megaraid_sas lt version gt noarch rpm
50. ds a data transfer completion signal to the host when the disk subsystem has received all the data in a transaction Read Ahead enables the read ahead feature for the virtual disk You can set the parameter to Read Ahead No Read Ahead or Adaptive The default is Adaptive Read Ahead Read Ahead specifies that the controller uses Read Ahead for the current virtual disk Read Ahead capability allows the controller to read sequentially ahead of requested data and store the additional data in cache memory anticipating that the data is required soon Parameter Description No Read Ahead specifies that the controller does not use read ahead for the current virtual disk Adaptive specifies that the controller begins using Read Ahead if the two most recent disk accesses occurred in sequential sectors If all read requests are random the algorithm reverts to No Read Ahead however all requests are still evaluated for possible sequential operation Virtual Disk Management Creating Virtual Disks NOTE Combining SAS and SATA disk drives within a virtual disk is not supported Also combining disk drives and SSDs within a virtual disk is not supported K NOTE To create secured virtual disks see the topic Security Key And RAID Management Perform the following steps to create a virtual disk 1 During host system bootup press lt Ctrl gt lt R gt after the BIOS screen is displayed The Virtual Disk Management screen is displayed
51. e 4 or more 4 or more Capacity Expansion Possible Yes Yes Yes Yes Yes Yes Yes Yes Yes Description disk into a mirrored virtual disk by adding one disk At least one disk needs to be added for distributed parity data At least two disks need to be added for dual distributed parity data Removes redundancy while increasing capacity Maintains redundancy while doubling capacity Two disks required to be added for distributed parity data Converts to a non redundant virtual disk and reclaims disk space used for distributed parity data Increases capacity by adding disks At least one disk needs to be added for dual distributed parity data Converts to a non redundant virtual disk and reclaims 19 Source RAID Target RAID Level Number of Number of Capacity Description Level Physical Disks Physical Disks Expansion Beginning End Possible disk space used for distributed parity data RAID 6 RAID 5 4 or more 4 or more Yes Removes one set of parity data and reclaims disk space used for it RAID 6 RAID 6 4or more 5 or more Yes Increases capacity by adding disks K NOTE The total number of physical disks in a disk group cannot exceed 32 You cannot perform RAID level migration and expansion on RAID levels 10 50 and 60 Fault Tolerance The list of features of the PERC cards that provide fault tolerance to prevent data loss is as follows Su
52. e information on accessing the BIOS Configuration Utility see the topic Entering The BIOS Configuration Utility K NOTE For more information on Foreign Configuration View see the topic Foreign Configuration View 4 Exitthe BIOS Configuration Utility and reboot the system 5 Ensure that all the latest drivers for the PERC H710 H710P or H810 card available at support dell com are installed For more information see the topic Driver Installation Virtual Disk Write Cache Policies K NOTE PERC H310 only supports Write Through mode The write cache policy of a virtual disk determines how the controller handles writes to the virtual disk Write Back and Write Through are the two write cache policies that can be set on virtual disks individually All RAID volumes are presented as Write Through to the operating system Windows and Linux independent of the actual write cache policy of the virtual disk The PERC cards manage the data in cache independently of the operating system or any applications K NOTE Use the Dell OpenManage storage management application or the BIOS Configuration Utility to view and manage virtual disk cache settings Write Back And Write Through In Write Through caching the controller sends a data transfer completion signal to the host system when the disk subsystem has received all the data in a transaction In Write Back caching the controller sends a data transfer completion signal to the host w
53. e information on persistent hot spares see the Dell OpenManage documentation at dell com support manuals Physical Disk Hot Swapping K NOTE To check if the backplane supports hot swapping see the Owner s Manual of your system Hot swapping is the manual replacement of a disk while the PERC H310 H710 H710P or H810 cards are online and performing their normal functions The following requirements must be met before hot swapping a physical disk e The system backplane or enclosure must support hot swapping for the PERC H310 H710 H710P or H810 cards to support hot swapping e The replacement disk must be of the same protocol and disk technology For example only a SAS hard drive can replace a SAS hard drive only a SATA SSD can replace a SATA SSD The replacement disk must be of equal or greater capacity than the one it is replacing Using Replace Member And Revertible Hot Spares The Replace Member functionality allows a previously commissioned hot spare to be reverted to a usable hot spare When a disk failure occurs within a virtual disk an assigned hot spare dedicated or global is commissioned and begins rebuilding until the virtual disk is optimal After the failed disk is replaced in the same slot and the rebuild to the hot spare is complete the controller automatically starts to copy data from the commissioned hot spare to the newly inserted disk After the data is copied the new disk is a part of the virtual disk and the
54. e parity data can be used by the controller to regenerate user data Parity data is present for RAID 5 6 50 and 60 The parity data is distributed across all the physical disks in the system If a single physical disk fails it can be rebuilt from the parity and the data on the remaining physical disks RAID level 5 combines distributed parity with disk striping Parity provides redundancy for one physical disk failure without duplicating the contents of the entire physical disks 86 RAID 6 combines dual distributed parity with disk striping This level of parity allows for two disk failures without duplicating the contents of entire physical disks SSL Stripe element 1 Stripe element2 Stripe element3 Stripe element4 Stripe element5 Parity 1 5 Stripe element7 Stripe element8 Stripe element9 Stripe element 10 Parity 6 10 Stripe element 6 Stripe element 13 Stripe element 14 Stripe element 15 Parity 11 15 Stripe element 11 Stripe element 12 Stripe element 19 Stripe element 20 Parity 16 20 Stripe element 16 Stripe element 17 Stripe element 18 Stripe element 25 Parity 21 25 Stripe element 21 Stripe element 22 Stripe element 23 Stripe element 24 Parity 26 30 Stripe element 26 Stripe element 27 Stripe element 28 Stripe element 29 Stripe element 30 Figure 8 Example of Distributed Parity RAID 5 K NOTE Parity is distributed across multiple physical disks in the disk group Stripe element 1 Stripe glement 7 Stripe element3
55. ed soon This speeds up reads for sequential data but there is little improvement when accessing random data No Read Ahead Disables the Read Ahead capability Adaptive Read Ahead Begins using Read Ahead if the two most recent disk accesses occurred in sequential sectors If the read requests are random the controller reverts to No Read Ahead mode K NOTE The default read cache setting for virtual disks is Adaptive Read Ahead Reconfiguration Of Virtual Disks An online virtual disk can be reconfigured in ways that expands its capacity and or change its RAID level E NOTE Spanned virtual disks such as RAID 10 50 and 60 cannot be reconfigured NOTE Reconfiguring Virtual Disks typically impacts disk performance until the reconfiguration operation is complete Online Capacity Expansion OCE can be done in two ways If there is a single virtual disk in a disk group and free space is available the virtual disk s capacity can be expanded within that free space Ifa virtual disk is created and it does not use the maximum size of the disk group free space is available Free space is also available when a disk group s physical disks are replaced by larger disks using the Replace Member feature A virtual disk s capacity can also be expanded by performing an OCE operation to add more physical disks RAID Level Migration RLM refers to changing a virtual disk s RAID level Both RLM and OCE can be done at the same time
56. ed using CacheCade e CacheCade virtual disks only cache input reads that are smaller than 64 KB e CacheCade virtual disks are read cache only e CacheCade virtual disks cannot be migrated to a controller that does not support CacheCade e Importing a CacheCade drive may result in a RAID 0 VD You must reconfigure the CacheCade VD after importing e CacheCade virtual disks are not presented to the operating system Configuring And Managing CacheCade Virtual Disks All management applications allow the creation and deletion of CacheCade virtual disks The following sections describe the menu options specific to CacheCade virtual disk management and provide detailed instructions to perform the configuration tasks The contents of the following section apply to the BIOS Configuration Utility lt Ctrl gt R For more information on the management applications see the topic Management Applications For PERC Cards 61 CacheCade Virtual Disk Management The Virtual Disk Management screen is the first screen that is displayed when you access a RAID controller from the main menu screen on the BIOS Configuration Utility The following are CacheCade related actions you can perform through the virtual disk management menu e Create CacheCade virtual disk e Assign CacheCade virtual disk name Delete virtual disk Creating CacheCade Virtual Disks k NOTE Only SSDs can be used to create CacheCade virtual disks K NOTE Combining
57. efault The feature can be enabled in the Dell Open Manage Storage Management application using the Unified Extensible Firmware Interface UEFI RAID Configuration utility For more information see the Dell OpenManage documentation at dell com support manuals There are four power saving modes available No Power All power savings features are disabled Savings default mode Balanced Power Spin down is enabled only for unconfigured and hot spare disks Savings Maximum Power Spin down is enabled for configured unconfigured and hot spare disks Savings Customized All power savings features are customizable You can specify a Quality of Service window Power Savings during which the configured disks are excluded from spin down Configured Spin Down Delay K NOTE The Configured Spin Down Delay option is not applicable for the No Power Savings mode The amount of time to wait before spinning down disks can be set using Configured Spin Down Delay The minimum value of the timer is 30 minutes default and the maximum is one day Disks are spun down automatically and spun up when accessed All disks are spun up on reboot 13 K NOTE There is a delay to I O operations when a configured disk is being spun up Types Of Virtual Disk Initialization You can initialize the virtual disks as described in the following sections A CAUTION The initializing virtual disks task erases the files and file systems while keeping the virtual disk
58. el Stripe Element Size Write Policy Read Policy Description RAID Level specifies whether the virtual disk is RAID 0 1 5 6 10 50 or 60 The number of disks disk capacity the requirements for fault tolerance performance and capacity should be considered when selecting the RAID level For more information see the topic Summary Of RAID Levels Stripe Element Size specifies the size of the segments written to each physical disk in a RAID 0 1 5 6 10 50 and 60 virtual disk You can set the stripe element size to 64 KB 128 KB 256 KB 512 KB or 1024 KB The default and recommended stripe element size is 64 KB A larger stripe element size provides better read performance if your system mostly does sequential reads Write Policy specifies the controller write policy You can set the write policy to Write Back or Write Through In Write Back caching the controller sends a data transfer completion signal to the host when the controller cache has received all the data in a transaction K NOTE If a Battery Backup Unit BBU is present the default cache setting is Write Back If no BBU is present the default cache policy default setting is Write Through K NOTE If Write Back is enabled and the system is quickly turned off and then on the controller may pause as the system flushes cache memory Controllers that contain a battery backup default to Write Back caching In Write Through caching the controller sen
59. en highlight the Controller 3 Press F2 to display the available actions 4 Navigate to the Foreign Config option and press the right arrow key to display the available actions Import and Clear NOTE Ensure that your virtual disk has all the physical disks by verifying that there are no physical disks marked as Missing in the foreign view page and that all the disks appear as expected before importing them 5 Select Import to import the foreign configuration or Clear to delete the foreign configuration and then press lt Enter gt If you import the configuration the VD Mgmt screen displays detailed configuration information It includes information about the disk groups virtual disks physical disks space allocation and hot spares Importing Or Clearing Foreign Configurations Using The Foreign Configuration View Screen k NOTE To import a secured foreign configuration see the topic Security Key And RAID Management If one or more physical disks are removed from a configuration the configuration on those disks is considered a foreign configuration by the RAID controller You can use the Foreign Configuration View screen to view information about the foreign configuration such as disk groups virtual disks physical disks space allocation and hot spares The foreign configuration data is displayed in the same format as configurations on the VD Mgmt screen You can use the VD Mgmt screen to view the foreign configur
60. er the heading State 2 Press the down arrow key to highlight a physical disk 3 Press F2 to display the menu of available actions 4 Press the down arrow key to highlight LED Blinking 5 Press the right arrow key to display the available actions Start and Stop 6 Select Start to begin LED blinking or Stop to end LED blinking 54 Creating Global Hot Spares You can use a global hot spare to replace a failed physical disk in any redundant array as long as the capacity of the global hot spare is equal to or larger than the coerced capacity ofthe failed physical disk Perform the following steps to create global hot spares 1 Press the down arrow key to highlight a physical disk to change to a global hot spare 2 Press F2 to display the menu of available actions 3 Press the down arrow key to highlight Make Global HS and press Enter The physical disk is changed to a global hot spare The status ofthe physical disk as a global hot spare is displayed under the heading State NOTE To replace a failed physical disk global hot spares must use the same disk technology and must be equal or greater in size 4 Select additional physical disks if desired and follow the previous steps to change them to global hot spares Removing Global Or Dedicated Hot Spares You can remove one global or dedicated hot spare at a time on the PD Mgmt screen Perform the following steps to remove a global hot spare or dedicated hot spare
61. erved cache see the topic Managing Preserved Cache BIOS Disabled Error Message Error Message Probable Cause Corrective Action BIOS Disabled No Logical Drives Handled by BIOS This warning message is displayed after you disable the ROM option in the configuration utility When the ROM option is disabled the BIOS cannot boot to Int 13h and cannot provide the ability to boot from the virtual disk Int 13h is an interrupt signal that supports numerous commands that are sent to the BIOS and then passed to the physical disk The commands include actions you can perform with a physical disk such as reading writing and formatting Enable the ROM option Drive Configuration Changes Error Message Error Message Probable Cause Entering the configuration utility in this state will result in drive configuration changes Press Y to continue loading the configuration utility or please power off your system and check your cables to ensure all disks are present and reboot The message is displayed after another BIOS warning indicating there are problems with previously configured disks and you have chosen to accept any changes and continue The SAS cables for your system might be improperly connected 73 Corrective Check the cable connections and fix any problems before restarting the system If there are no Action cable problems press any key or lt Y gt to continue Adapter At Baseport Not Responding Error Message
62. es disk striping across mirrored disks It provides high data throughput and complete data redundancy RAID 10 can support up to eight spans and up to 32 physical disks per span RAID 50 is a combination of RAID 0 and RAID 5 where a RAID 0 array is striped across RAID 5 elements RAID 50 requires at least six disks RAID 60 is a combination of RAID 0 and RAID 6 where a RAID 0 array is striped across RAID 6 elements RAID 60 requires at least eight disks RAID Terminology Disk Striping Disk striping allows you to write data across multiple physical disks instead of just one physical disk Disk striping involves partitioning each physical disk storage space in stripes of the following sizes 64 KB 128 KB 256 KB 512 KB and 1024 KB The stripes are interleaved in a repeated sequential manner The part of the stripe on a single physical disk is called a stripe element 85 For example in a four disk system using only disk striping used in RAID 0 segment 1 is written to disk 1 segment 2 is written to disk 2 and so on Disk striping enhances performance because multiple physical disks are accessed simultaneously but disk striping does not provide data redundancy Stripe element 1 Stripe element 2 Stripe element 3 Stripe element 4 Stripe element 5 Stripe element 6 Stripe element 7 Stripe element 8 Stripe element 9 Stripe element 10 Stripe element 11 Stripe element 12 Figure 6 Example of Disk Striping RAID 0 Disk Mirroring With
63. essage indicates that some configured disks were removed If the disks were not removed they are no longer accessible The SAS cables for your system might be improperly connected Corrective Check the cable connections and fix any issues Restart the system If there are no cable Action problems press any key or lt C gt to continue Battery Discharged Or Disconnected Error Message Error Message The battery is currently discharged or disconnected Verify the connection and allow 30 minutes for charging If the battery is properly connected and it has not returned to operational state after 30 minutes of charging then contact technical support for additional assistance Probable Cause This message may appear for controller without battery depending on the virtual disks policies Corrective Action The controller battery is missing or currently inaccessible contact Dell support if the problem persist after 30 minutes e The controller battery is completely discharged and needs to be charged for it to become active You must first charge the battery and wait for a few minutes for the system to detect it Degraded State Of Virtual Disks A redundant virtual disk is in a degraded state when one or more physical disks have failed or are inaccessible For example if a RAID 1 virtual disk consists of two physical disks and one of them fails or become inaccessible the virtual disk become degraded TI To recover a virtual
64. g a single physical disk see the topic Performing A Manual Rebuild Of An Individual Physical Disk Rebuilding A Failed Physical Disk Issue Rebuilding a physical disk after one of them is in a failed state Corrective If you have configured hot spares the PERC card automatically tries to use one of them to Action rebuild a physical disk that is in a failed state Manual rebuild is necessary if no hot spares with enough capacity to rebuild the failed physical disks are available You must insert a physical disk with enough storage in the subsystem before rebuilding the physical disk NOTE You can use the BIOS Configuration Utility lt Ctrl gt lt R gt or Dell OpenManage storage management application to perform a manual rebuild of an individual physical disk For information on rebuilding a single physical disk see the topic Performing A Manual Rebuild Of An Individual Physical Disk Virtual Disk Fails During Rebuild Using A Global Hot Spare Issue A virtual disk fails during rebuild while using a global hot spare Description The global hot spare goes back to Hotspare state and the virtual disk goes to Failed state Virtual Disk Fails During Rebuild Using A Dedicated Hot Spare Issue A virtual disk fails during rebuild while using a dedicated hot spare Description The dedicated hot spare goes to Ready state and the virtual disk goes to Failed state 80 Physical Disk Fails During Reconstruction On Redundant Virtual Disk
65. ge Storage Management BIOS Configuration Uleedung e Entering The BIOS Configuration Utility Exiting The Configuration Ulm Menu Navigation Controls I n naa Setting Up Virt al Diskg uu a kd did pon lna aaa ashanka A aa aqa lasa ea Viet RO AE Creating Virtual Diskg etik van v ti doue ek ve noon aw kan ka kd ad a ki da aa ok a mad bf od ai ad afe da ma aka dak de ea ea ok wk kn Selecting Virtual Disk Parameters L Converting Physical Disk To RAID Capable For PERC H310 Converting Physical Disk To Non RAID For PERC H Initializing Virtual IEN Ch ckinq Data GONSISTONC You u ett bag an Dt tege NENNEN Running A Data Consistency Check Importing Or Clearing Foreign Configurations Using The VD Mgmt Men 44 Importing Or Clearing Foreign Configurations Using The Foreign Configuration View Screen 44 Break Miri ormsn T a SEENEN ee oa a ee SN Managing Preserved Caches vev uu a na ak ta Aere kk p kb cele a s ae p n de dak kay pin dee Managing Dedicated Hot Spares M Deleting Virtual EE Deleting sDisk Groups de ene pe a a defo pede chads de ta ka a a ad dp n saad kd ha pw a kap a Ba BRA GRO ayayay ENP eier Clearing The Configura tOM aa AE f b dak ke la ap da ak ek vi Q ak kon pa isk de kaka ie d BIOS Configuration Utility Menu 0ptions Virtual Disk Management VD Mgmt VirtdaliDISK ACtiOnS sr u tike dient Aaa n Sh a aaa del A e pak a pk at a E pet Physical Disk Management PD Mom 52 P
66. h cache Except for this message there is no effect of this behavior on normal operation The cache policy of the virtual disk and the 1 0 throughput are not affected by this message The cache policy settings for the PERC SAS RAID system remain unchanged Driver Does Not Auto Build Into New Kernel Issue Driver does not auto build into new kernel after customer updates Corrective This error is a generic problem for Dynamic Kernel Module Support DKMS and applies to all Action DKMS enabled driver packages This issue occurs when you perform the following steps 1 Install a DKMS enabled driver package 2 Run up2date or a similar tool to upgrade the kernel to the latest version 3 Reboot to the new kernel The driver running in the new kernel is the native driver of the new kernel The driver package you installed previously in the new kernel does not take effect in the new kernel 1 Type dkms build m module name gt v lt module version k kernel version 2 Type dkms install m module name v module version k kernel version 3 Type the following to check whether the driver is successfully installed in the new kernel DKMS The following details appear driver name driver version new kernel version installed Unable To Register SCSI Device Error Message Error smartd smartd 2338 Device dev sda Bad IEC SMART mode page err 5 skip device smartd 2338 Unable to register SCSI dev
67. he items selected in the left panel The following sections describe the menu and submenu options for each of the major menus Virtual Disk Management VD Mgmt The Virtual Disk Management screen VD Mgmt is the first screen that is displayed when you access a RAID controller from the main menu screen on the BIOS Configuration Utility lt Ctrl gt lt R gt The left panel displays the menus for the virtual disk management as given below Controller Consists of the sub menu item Disk Group which again has the following sub menu items Virtual Disks Physical Disks TotalFree Capacity virtual disk size and free space you can use to create a virtual disk HotSpares global and dedicated The right panel displays detailed information for the selected controllers disk groups virtual disks physical disks total free capacity and hot spares as shown in the following table Table 5 Information on the Virtual Disk Management Screen Menu Item Selected in Left Panel Information Displayed in Right Panel Controller Controller Properties Number of disk groups DG Number of virtual disks VD e Number of physical disks PD Disk Group Disk Group Properties Number of virtual disks VD e Number of physical disks PD e Space available on the physical disks Number of free segments e Number of dedicated hot spares 49 Menu Item Selected in Left Panel Virtual Disks Virtual Disk Physical Dis
68. hen the controller cache has received all the data in a transaction The controller then writes the cached data to the storage device in the background The risk of using Write Back cache is that the cached data can be lost if there is a power failure before it is written to the storage device This risk is mitigated by using a Non Volatile Cache on the PERC H710 H710P or H810 card K NOTE The default cache setting for virtual disks is Write Back caching K NOTE Certain data patterns and configurations perform better with a Write Through cache policy Conditions Under Which Write Back Is Employed Write Back caching is used under all conditions in which the battery is present and in good condition Conditions Under Which Forced Write Back With No Battery Is Employed CAUTION It is recommended that you use a power backup system when forcing Write Back to ensure there is no loss of data if the system suddenly loses power Write Back mode is available when you select Force WB with no battery When Forced Write Back mode is selected the virtual disk is in Write Back mode even if the battery is not present 17 Virtual Disk Read Cache Policies The read policy of a virtual disk determines how the controller handles reads to that virtual disk The read policies are Always Read Ahead Allows the controller to read sequentially ahead of requested data and to store the additional data in cache memory anticipating that the data is requir
69. hen there is a SMART predictive failure reporting on a physical disk in a virtual disk The automatic Replace Member is initiated when the first SMART error occurs on a physical disk that is part 20 ofavirtual disk The target disk needs to be a hot spare that qualifies as a rebuild disk The physical disk with the SMART error is marked as failed only after the successful completion of the Replace Member This avoids putting the array in degraded status If an automatic Replace Member occurs using a source disk that was originally a hot spare that was used in a rebuild and a new disk added for the Replace Member operation as the target disk the hot spare reverts to the hot spare state after a successful Replace Member operation NOTE To enable the automatic Replace Member use the Dell OpenManage storage management application For more information on automatic Replace Member see the topic Dell OpenManage Storage Management For information on manual Replace Member see the topic Replacing An Online Physical Disk Patrol Read The Patrol Read feature is designed as a preventative measure to ensure physical disk health and data integrity Patrol Read scans for and resolves potential problems on configured physical disks The Dell OpenManage storage management application can be used to start Patrol Read and change its behavior The following is an overview of Patrol Read behavior Patrol Read runs on all disks on the controller tha
70. hen updating an existing package If the previous device driver is in use you must reboot the system for the updated driver to take effect Verify that the driver has been loaded with the following system commands modinfo megaraid_sas Upgrading The Kernel When upgrading to a new kernel you must reinstall the DKMS enabled driver packages Perform the following steps to update or install the driver for the new kernel 1 In a terminal window type the following dkms build m lt module_name gt v module version k lt kernel version dkms install m lt module_name gt v module version k kernel version 2 To check whether the driver is successfully installed in the new kernel type dkms status 34 3 You see a message similar to the following one driver name gt driver version new kernel version installed If the previous device driver is in use you must reboot the system for the updated driver to take effect 35 36 5 Management Applications For PERC Cards Dell OpenManage Storage Management applications enable you to manage and configure the RAID system create and manage multiple disk groups control and monitor multiple RAID systems and provide online maintenance The management applications for PERC H310 H710 H710P and H810 include Dell OpenManage Storage Management e BIOS Configuration Utility lt Ctrl gt R Unified Extensible Firmware Interface UEFI RAID
71. hysical Desk Ap De ete apa in sate kk pam kn ke kd n ok n ao de kt a ak pa uka kako lk kle aka Andan do 52 RED Wil ei ap a a honed E eaten aa Re a DW en ee 53 Controller Management Ctrl Mom 53 Controller Management Actions Foreign Configuration View Physical Disk TEE Setting ORT DEEN Greating Global HOt S PANO Se s u kado ok des na non bul n pe dw ak ki n do ko e pake kask da dede anb haqa Removing Global Or Dedicated Hot Spares M u 55 Replacing An Online Physical Disk Restrictions and Limitations Stopping Background Initialization Performing A Manual Rebuild Of An Individual Physical Disk 56 Controller EIER DEE 57 Enabling Boot Supportere deed main aa da dj dekwa kad da kaa kaa panda mea aske 57 Enabling Boot Support For A BIOS Enabled Controller U U 57 Enabling BIOS Stop On Error 57 Enabling Auto Import Disabling Auto Import Restoring Factory Default Settings u u 58 UEFI RAID Configuration Ulm 58 Entering The UEFI RAID Configuration Utility I u u 58 Exiting The UEFI RAID Configuration Utility U 59 Configuration A OT Controller Management Menu Virtual Disk Manage MeNi a a aa aaa aA AAE E A aE A a Aa aa iaaa Physical Disk Management Men 60 Enclosure Manage ment ae zie ka ton aaraa kle p kn n a l e e Ee deed paka knn ER ai aka nen 60 BC ACNOC AN EE 61 CacheCade Virtual Disk Characteristics L u 61 Configuring And Managing CacheCade Virt
72. ice dev sda at line 1 of file etc smartd conf Corrective This is a known issue An unsupported command is entered through the user application User Action applications attempt to direct Command Descriptor Blocks to RAID volumes The error message does not affect the feature functionality The Mode Sense Select command is supported by firmware on the controller However the Linux kernel daemon issues the command to the virtual disk instead of to the driver IOCTL node This action is not supported 83 Disk Carrier LED Indicators The LED on the physical disk carrier indicates the state of each physical disk Each disk carrier in your enclosure has two LEDs an activity LED green and a status LED bicolor green amber The activity LED is active whenever a disk is being accessed while the status LED indicates when a disk is being spun up is rebuilding or is in a fault state 1 2 Figure 5 Disk Carrier LED Indicators 1 activity LED 2 status LED 84 9 Appendix RAID Description RAID is a group of independent physical disks that provides high performance by increasing the number of disks used for saving and accessing data N CAUTION In the event of a physical disk failure a RAID 0 virtual disk fails resulting in data loss A RAID disk subsystem offers the following benefits Improved UO performance and data availability Improved data throughput because several disks are accessed simultaneously The physical d
73. ifier Enter an identifier for your security key NOTE The Security Key Identifier is a user supplied clear text label used to associate the correct security key with the controller Press lt Tab gt to enter a passphrase A CAUTION If you lose or forget your passphrase the data in your virtual disk is inaccessible Press Tab and select OK to accept the settings and to exit the window Select Cancel to exit if you do not want to create a security key on the controller Changing The Security Key K NOTE Change Key is active if there is a security key present on the controller Perform the following steps when changing the security key on the controller 1 eo oOo PS o 66 During host system bootup press lt Ctrl gt lt R gt when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed Select a controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller Use the arrow keys to highlight Security Key Management Press lt F2 gt to display the actions you can perform Select Change Key and press lt Enter gt The Change Security Key screen is displayed The cursor is at the Security Key Identifier Enter an identifier for your Security Key Press lt Tab gt to enter a new passphrase K NOTE You need to provide the current passphrase in order to change the sec
74. iguration during boot without having the need to access the BIOS Configuration Utility lt Ctrl gt lt R gt Factory Default Select the option to restore the default settings for the options in the Settings box Foreign Configuration View When a foreign configuration is present you can select Foreign Configuration View to display the configuration The screen shows the foreign configuration as it would be if you import it You can preview the foreign configuration before you decide whether to import it or clear it In some cases a foreign configuration cannot be imported If a physical disk in a virtual disk is rebuilding the physical disk s state is set to Rebuild No virtual disk target ID displays for virtual disks that cannot be imported The section Importing or Clearing Foreign Configurations Using the Foreign Configuration View Screen contains the procedures you can use to manage the foreign configurations k NOTE The BIOS Configuration Utility lt Ctrl gt lt R gt reports error codes for failed imports of foreign configurations Physical Disk Management Setting LED Blinking The LED blinking option indicates when physical disks are being used to create a virtual disk You can choose to start or stop the LED blinking Perform the following steps to start or stop the option 1 Press lt Ctrl gt lt N gt to access the PD Mgmt screen A list of physical disks is displayed The status of the each disk is displayed und
75. ing for that item key or move from a submenu to a higher level menu If you press the left arrow key at a menu heading the submenu collapses Press it again to go to the higher level menu Word wrap is supported up arrow Use the up arrow key to move to the upper menu Virtual Disk 1 key items within a menu or to a higher level menu You 1 38 can also use the up arrow key to close a menu listin Virtual Disk 4 a popup window such as the stripe element size menu Word wrap is supported Notation down arrow key lt Enter gt lt Esc gt lt Tab gt lt Shift gt lt Tab gt lt Ctrl gt lt N gt lt Ctrl gt lt P gt lt F1 gt lt F2 gt lt F5 gt lt F11 gt lt F12 gt Spacebar Meaning and Use Use the down arrow key to move to the lower menu items within a menu or to a lower level menu You can also use the down arrow key to open a menu list in a popup window such as the stripe element size menu and select a setting Word wrap is supported After you highlight a menu item press lt Enter gt to select that item An options menu for the menu item opens It applies to only certain menu items such as Virtual Disk In a list of options for that item such as the write policy for a virtual disk highlight a setting such as Write Through and press lt Enter gt to select it After you expand a pop up window press lt Esc gt to close the window You can continue to press lt Esc gt to e
76. initialization NOTE Warning messages appear stating the effect of deleting a virtual disk Click OK twice to complete the virtual disk deletion To delete virtual disks perform the following steps in the BIOS Configuration Utility lt Ctrl gt lt R gt 1 Press lt Ctrl gt N to access the VD Mgmt screen 2 Use the arrow keys to move the cursor to the Virtual Disks heading 3 Press F2 The action menu is displayed 4 Select Delete VD and press lt Enter gt 5 If there are multiple virtual disks in a Disk Group select Total Free Capacity for the Disk Group in the VD Mgmt screen The total amount of free space available in the Disk Group is displayed Deleting Disk Groups You can delete disk groups using the BIOS Configuration Utility lt Ctrl gt lt R gt When you delete a disk group the utility also removes the virtual disks in that disk group To delete disk groups perform the following steps in the BIOS Configuration Utility lt Ctrl gt lt R gt 1 Press lt Ctrl gt N to access the VD Mgmt screen 2 Use the arrow keys to move the cursor to the Virtual Disks heading 3 Press F2 The action menu is displayed 4 Select Delete Disk Group and press Enter The disk group is deleted NOTE When you delete a disk group the remaining disk groups with higher numbers are automatically renumbered For example if you delete disk group 2 then disk group 3 is automatically renumbered as d
77. isk group 2 Clearing The Configuration You can delete all virtual disks on the RAID controller by performing the operation To clear the configuration perform the following steps in the BIOS Configuration Utility lt Ctrl gt lt R gt 1 Press lt Ctrl gt lt N gt to access the VD Mgmt screen 2 Use the arrow keys to move the cursor to the Controller heading 3 Press F2 The action menu is displayed 4 Select Clear Config A pop up window is displayed prompting for confirmation to delete all virtual disks 5 Select NO to delete the virtual disks or YES to retain the Consistency Checks existing configuration 48 BIOS Configuration Utility Menu Options The first menu that is displayed when you access the BIOS Configuration Utility lt Ctrl gt lt R gt is the main menu screen It lists the controller controller number and other information such as the slot number On the screen you can use the arrow keys to select the RAID controller you want to configure Press lt Enter gt to access the controller This section describes the options for the BIOS Configuration Utility lt Ctrl gt lt R gt for each of the major menus Virtual Disk Management VD Mgmt menu Physical Disk Management PD Mgmt menu Controller Management Ctr Mgmt menu Foreign Configuration View Foreign View menu Most menus consist of two panels A left panel with the menu options e A right panel with details of t
78. isk group appears either as a single storage unit or multiple logical units to the host system Improved data storage availability and fault tolerance Data loss caused by a physical disk failure can be recovered by rebuilding missing data from the remaining physical disks containing data or parity Summary Of RAID Levels K NOTE PERC H710 H710P and H810 cards support all RAID levels listed below PERC H310 supports RAID 5 with limited performance and does not support RAID 6 and RAID 60 RAID 0 uses disk striping to provide high data throughput especially for large files in an environment that requires no data redundancy RAID 1 uses disk mirroring so that data written to one physical disk is simultaneously written to another physical disk RAID 1 is good for small databases or other applications that require small capacity and complete data redundancy RAID 5 uses disk striping and parity data across all physical disks distributed parity to provide high data throughput and data redundancy especially for small random access RAID 6 is an extension of RAID 5 and uses an additional parity block RAID 6 uses block level striping with two parity blocks distributed across all member disks RAID 6 provides protection against double disk failures and failures while a single disk is rebuilding If you are using only one array deploying RAID 6 is more effective than deploying a hot spare disk RAID 10 is a combination of RAID 0 and RAID 1 us
79. isk if the virtual disk becomes offline or is deleted because of missing physical disks This preserved dirty cache is called pinned cache and is preserved until you import the virtual disk or discard the cache Use the BIOS Configuration Utility lt Ctrl gt R to select whether to import the virtual disk or discard the preserved cache In the VD Mgmt menu select Manage Preserved Cache and follow the steps on the screen General Issues PERC Card Has Yellow Bang In Device Manager Issue The device is displayed in Device Manager but has a yellow bang exclamation mark Corrective Reinstall the driver For more information on reinstalling drivers see the topic Driver Action Installation PERC Card Not Seen In Device Manager Issue The device does not appear in the Device Manager Correction Turn off the system and reseat the controller For more information see Installing The PERC Controller No Hard Drives Found Error Message During Microsoft Windows Server 2003 Installation Issue No Hard Drives Found message is displayed during a media based installation of Microsoft Windows Server 2003 78 Corrective The issue occurs ia because of any of e The driver is not native in the operating system the following To resolve the issue press F6 to install the RAID device causes driver during installation The virtual disks are not configured properly To resolve the issue enter the BIOS Configuration Utility
80. iver you require Select the self extracting zip file and click Run Copy the driver to a diskette drive CD DVD or USB drive Repeat this step for all the drivers you require During the operating system installation use the media that you created with the Load Driver option to load mass storage drivers For more information on reinstalling the operating system see the relevant section for your operating system below Downloading Drivers From The Dell Support Website For Windows To download drivers from the Dell Support website 1 2 3 4 Go to dell com support Select your line of business In the Popular support tools section click Drivers and Downloads Enter the service tag of your system in the Choose by Service Tag to get started field or select Choose from a list of all Dell products Select the System Type Operating System and Category from the drop down list The drivers that are applicable to your selection are displayed Download the drivers that you require to a diskette drive USB drive CD or DVD During the operating system installation use the media that you created with the Load Driver option to load mass storage drivers For more information on reinstalling the operating system see the relevant section for your operating system below Installing Driver During a Windows Server 2008 2008 R2 Installation To install the driver 1 2 Boot the system using the Windows Server 2008 or Windows Server 200
81. ks Physical Disk Total Free Capacity 50 Information Displayed in Right Panel Security property of the Disk Group Disk Group Properties Number of virtual disks VD Number of physical disks PD Space available in the virtual disk Number of free segments Number of dedicated hot spares Virtual Disk Properties RAID level 0 1 5 6 10 50 or 60 RAID status of the virtual disk Failed Degraded Partially Degraded or Optimal Operation currently in progress Disk Group Properties Number of virtual disks VD Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Disk Group Properties Number of virtual disks VD Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Physical Disk Properties Vendor name Physical disk state Enclosure Position Slot Position Disk Group Properties Number of virtual disks VD Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Disk Group Properties Number of virtual disks VD Menu Item Selected in Left Panel Information Displayed in Right Panel Number of physical disks PD Space available on the physical disks Number of free segments Number of dedicated hot spares Hot Spares Physical Disk Properties
82. lect YES Troubleshooting Security Key Errors Secured Foreign Import Errors A foreign configuration is a RAID configuration that already exists on a replacement physical disk that you install in a system A secured foreign configuration is a RAID configuration that was created under a different security key There are two scenarios in which a secured foreign import fails The passphrase authentication fails A VD secured with a security key different from the current controller security key cannot be imported without authentication of the original passphrase used to secure them Supply the correct passphrase to import the secured foreign configuration If you have lost or forgotten the passphrase the secured foreign disks remain locked inaccessible until the appropriate passphrase is entered or if they are instant secure erased The secured VD is in an offline state after supplying the correct passphrase You must check to determine why the virtual disk failed and correct the problem See the topic Troubleshooting Failure to Select Or Configure Non Self Encrypting Disks Non SED A virtual disk can be either secured or unsecured depending on how it was configured when created In order to create a secured virtual disk the controller must have a security key present and must be composed of SEDs only In order to select configure non SED you must create an unsecured virtual disk You can create an unsecured virtual disk even if 6
83. lt Enter gt The defaults are automatically selected for the controller settings and are displayed in Settings UEFI RAID Configuration Utility The UEFI RAID Configuration Utility is a storage management application integrated into the System BIOS that can be used to configure and manage RAID disk groups virtual disks and physical disks This utility is independent of the operating system NOTE Use the UEFI RAID Configuration Utility for initial setup and disaster recovery Certain advanced features are also offered in the utility Entering The UEFI RAID Configuration Utility To enter the UEFI RAID Configuration utility 1 Turn on the system 2 During startup press F2 to enter the System Setup 58 3 From System Setup Main Menu enter Device Settings Device Settings lists all the RAID controllers in the system Use the arrow keys or mouse to select the RAID controller you want to configure mange and press lt Enter gt or click on the mouse to access the management menus for the controller K NOTE The help information for all of the options within the UEFI RAID Configuration Utility can be viewed by clicking on Help at the top right hand corner of the browser screen Help information for individual option menus can also be viewed by scrolling down on each option K NOTE Some of the options within the UEFI RAID Configuration Utility are not present if the controller does not support the corresponding feature Option
84. might lose data that belongs with the foreign configuration 46 Perform the following steps to select whether to import the virtual disk or discard the preserved cache On the VD Mgmt screen click on a controller icon Press lt F2 gt to display the available actions Select Manage Preserved Cache A message is displayed advising you to import the foreign configuration before you discard the preserved cache to avoid losing data belonging to the foreign configuration Confirm whether you want to continue The Manage Preserved Cache screen displays the affected virtual disks You can choose to discard the cache on the Manage Preserved Cache screen If you press Cancel the process is cancelled and the Preserved Cache Retained dialog box is displayed If you choose to discard the cache you are prompted to confirm your choice If you choose to retain the cache a message is displayed to notify you that you cannot perform certain operations while the cache exists Click OK to continue Managing Dedicated Hot Spares A dedicated hot spare automatically replaces a failed physical disk only in the selected disk group which the hot spare is part of A dedicated hot spare is used before a global hot spare is used You can create dedicated hot spares or delete them on the VD Mgmt screen Perform the following steps to create or delete dedicated hot spares 1 On the VD Mgmt screen select Disk Group and press lt F2 gt to display the me
85. mirroring used in RAID 1 data written to one disk is simultaneously written to another disk If one disk fails the contents of the other disk can be used to run the system and rebuild the failed physical disk The primary advantage of disk mirroring is that it provides complete data redundancy Both disks contain the same data at all times Either of the physical disks can act as the operational physical disk Disk mirroring provides complete redundancy but is an expensive option because each physical disk in the system must be duplicated K NOTE Mirrored physical disks improve read performance by read load balance Stripe element 1 Stripe element 1 Duplicated Stripe element 2 Stripe element 2 Duplicated Stripe element 3 Stripe element 3 Duplicated Stripe element 4 Stripe element 4 Duplicated Figure 7 Example of Disk Mirroring RAID 1 Spanned RAID Levels Spanning is a term used to describe the way in which RAID levels 10 50 and 60 are constructed from multiple sets of basic or simple RAID levels For example a RAID 10 has multiple sets of RAID 1 arrays where each RAID 1 set is considered a span Data is then striped RAID 0 across the RAID 1 spans to create a RAID 10 virtual disk Similarly RAID 50 and RAID 60 combine multiple sets of RAID 5 or RAID 6 respectively with striping Parity Data Parity data is redundant data that is generated to provide fault tolerance within certain RAID levels In the event of a disk failure th
86. n the Virtual Disk Management screen under the CacheCade disk group and is labeled as a CacheCade virtual disk The virtual disk has an optimal state and its RAID level is RAID 0 NOTE You can only delete or rename a CacheCade virtual disk Background initialization fast initialization full initialization and consistency check operations are not applicable to CacheCade virtual disks 62 Deleting CacheCade Virtual Disks To delete CacheCade virtual disks perform the following steps in the BIOS Configuration Utility 1 Press lt Ctrl gt N to access the Virtual Disk Management screen 2 Use the arrow keys to move the cursor to the CacheCade Disk Group or Virtual Disks heading 3 Press lt F2 gt The Action menu is displayed 4 Select Delete VD and press lt Enter gt NOTE Warning messages are displayed stating the effect of deleting a virtual disk Click OK to complete the virtual disk deletion NOTE In operating system management applications a CacheCade virtual disk deletion or removal can be done without interrupting any I Os The controller stops caching via the secondary cache but all outstanding I Os are completed Reconfiguring CacheCade Virtual Disks In operating system management applications the resizing of CacheCade virtual disks occurs without stopping any existing I Os Creating a new CacheCade virtual disk or adding one or more SSDs to an existing CacheCade virtual disk increases the total cache size
87. nge the read policy press Tab to move the cursor to Read Policy Press lt Enter gt to display the options No Read Ahead Read Ahead or Adaptive Read Ahead Press the down arrow key to highlight the desired option and press lt Enter gt If you need to change the write policy press lt Tab gt to move the cursor to Write Policy Press lt Enter gt to display the options Write Through Write Back Press the down arrow key to highlight an option and press lt Enter gt Press lt Tab gt to move the cursor to Force WB with no battery and press lt Enter gt If you chose Write Through as the write policy then the option is not available A CAUTION Do notinitialize virtual disks when attempting to recreate an existing configuration Press Tab to move the cursor to Initialize and press Enter K NOTE The initialization performed at the stage is fast initialization Press lt Tab gt to move the cursor to Configure Hot Spare and press lt Enter gt K NOTE The hot spare created at the stage is a dedicated hot spare If you have chosen to create hot spares in the earlier steps a pop up window is displayed where disks with appropriate sizes are displayed Press the lt spacebar gt to select the disk size After you select the disk size click OK to finalize the selection or click Cancel to forfeit the selection Select OK to accept the settings and press lt Enter gt to exit the window or select Cancel and press lt E
88. nter gt to exit if you do not want to change any virtual disk parameters Converting Physical Disk To RAID Capable For PERC H310 K NOTE By default all physical drives are discovered as Non RAID drives Conversion of a physical disk to RAID capable allows that disk to be used within a Virtual Disk or as a Hot Spare 1 42 Press lt Ctrl gt lt N gt to access the PD Mgmt screen A list of physical disks is displayed The status of the each disk is displayed under State Press the down arrow key to highlight a physical disk Press lt F2 gt to display the menu of available actions Press the down arrow key to highlight Convert to RAID Capable 5 Press lt Enter gt Converting Physical Disk To Non RAID For PERC H310 Conversion of a Physical Disk to Non RAID allows direct operating system access to the drive Non RAID disks cannot be used within a Virtual Disk nor can they be used as Hot Spares 1 Press lt Ctrl gt lt N gt to access the PD Mgmt screen A list of physical disks is displayed The status of the each disk is displayed under State Press the down arrow key to highlight a physical disk 2 3 Press F2 to display the menu of available actions 4 Press the down arrow key to highlight Convert to Non RAID 5 Press lt Enter gt Initializing Virtual Disks A CAUTION A full initialization permanently destroys any existing data on that virtual disk Perform the following steps to initialize virtual di
89. nu of available actions The available menu options are displayed Select Manage Ded HS and press lt Enter gt A screen displays a list of the current dedicated hot spares with an X beside them and the physical disks that are available to create dedicated hot spares NOTE The utility allows only disks of the same disk technology and of equal or greater size to be selected as dedicated hot spare Use the following instructions to create or delete a dedicated hot spare Creating a dedicated hot spare 1 Press the down arrow key to highlight an available physical disk 2 Press the spacebar to select the disk 3 Repeat step a to step b for each dedicated hot spare that you want to create K NOTE An X is displayed beside the selected physical disk s Deleting a dedicated hot spare 1 Use the down arrow key to highlight a current hot spare 2 Press the spacebar to de select the disk 3 Repeat step a and step b for each dedicated hot spare that you want to delete Press Enter to confirm the changes The VD Mgmt screen displays the updated list of hot spares under the Hot spares heading NOTE If a global hot spare or dedicated hot spare is removed reinserted and imported it regains its status as a hot spare A dedicated hot spare becomes a global hot spare when the disk group it was assigned to protect is no longer present during import 47 Deleting Virtual Disks K NOTE You cannot delete a virtual disk during an
90. o H310 Does not support backward migration from H310 H710 H710P H810 to H800 and H700 NOTE The source controller must be offline prior to performing the disk migration NOTE Disks cannot be migrated to older revisions or generations of the PERC cards NOTE Non RAID disks are supported only on the PERC H310 controller Migration to any other PERC product is not supported KH SER NOTE Importing secured virtual disks is supported as long as the appropriate key LKM is supplied or configured When a controller detects a physical disk with an existing configuration it flags the physical disk as foreign and generates an alert indicating that a foreign disk was detected A CAUTION Do not attempt disk roaming during RLM or OCE This causes loss of the virtual disk Migrating Virtual Disks To migrate virtual disks from PERC H700 or H800 to PERC H710 H710P or H810 1 Turn off the system 2 Move the appropriate physical disks from the PERC H700 or H800 card to the PERC H710 H710P or H810 card NOTE If you are replacing your PERC H700 or H800 with a PERC H710 H710P or H810 card see the Owner s Manualof your system at support dell com manuals 3 Boot the system and import the foreign configuration that is detected You can do one of the following Press lt F gt to automatically import the foreign configuration Enter the BIOS Configuration Utility and navigate to the Foreign Configuration View NOTE For mor
91. oller only Multibit ECC errors were detected on the RAID controller If you continue data corruption can occur Contact technical support to resolve this issue Press X to continue or else power off the system replace the controller and reboot Or Multibit ECC errors were detected on the RAID controller The DIMM on the controller needs replacement If you continue data corruption can occur Press X to continue or else power off the system replace the DIMM module and reboot If you have replaced the DIMM please press X to continue CAUTION When removing or replacing the PERC Mini Monolithic Controller hold the card by its edges marked by the blue touch points Do not handle the card while holding the battery or the heatsink For more information see figure Removing and Installing the PERC Mini Monolithic Controller in Removing The PERC Controller A CAUTION Multi bit ECC errors cause data corruption and data loss In case of MBE errors contact Dell Technical Support Probable Cause Multi bit ECC errors occur in the memory and can corrupt cached data and discard it Corrective Contact Dell Technical Support Action Configured Disks Removed Or Not Accessible Error Message Error Message Some configured disks have been removed from your system or are no longer accessible Check your cables and ensure all disks are present Press any key or C to continue Probable Cause The m
92. on Utility see the topic Checking Data Consistency Disk Roaming Disk roaming is moving the physical disks from one cable connection or backplane slot to another on the same controller The controller automatically recognizes the relocated physical disks and logically places them in the virtual disks that are part of the disk group You can perform disk roaming only when the system is turned off Ba CAUTION Do not attempt disk roaming during RAID level migration RLM or online capacity expansion OCE This causes loss of the virtual disk Using Disk Roaming Perform the following steps to use disk roaming 1 Turn off the power to the system physical disks enclosures and system components Disconnect power cables from the system Move the physical disks to desired positions on the backplane or the enclosure Perform a safety check Make sure the physical disks are inserted properly m on Turn on the system The controller detects the RAID configuration from the configuration data on the physical disks FastPath FastPath is a feature that improves application performance by delivering high UO per second IOPs The Dell PowerEdge RAID Controller PERC H710P and H810 cards support FastPath FastPath is a further enhancement of the Cut Through IO CTIO feature introduced in PERC H700 and PERC H800 to accelerate IO performance by reducing the 10 processing overhead of the firmware CTIO reduces the instruction count req
93. options and select Start 5 After you start the rebuild press lt Esc gt to display the previous menu NOTE You can also use the VD Mgmt screen to perform a manual rebuild Use the arrow key to highlight a physical disk and press lt F2 gt In the menu that is displayed select the Rebuild option 56 Controller Management Enabling Boot Support E NOTE See your system documentation to ensure the proper boot order is selected in the system BIOS In a multiple controller environment you can enable BIOS on multiple controllers However if you want to boot from a specific controller enable the BIOS on that controller and disable it on the other controllers The system can then boot from the BIOS enabled controller Perform the following steps to enable the controller BIOS 1 Press lt Ctrl gt lt N gt to access Ctrl Mgmt menu screen Press lt Tab gt to move the cursor to Enable Controller BIOS in the Settings box Press the spacebar to select Enable Controller BIOS An X is displayed beside Enable Controller BIOS Press lt Tab gt to move the cursor to the Apply button and then press lt Enter gt to apply the selection The controller BIOS is enabled To disable the controller BIOS use the spacebar to de select the Enable Controller BIOS control and then select Apply and press lt Enter gt Enabling Boot Support For A BIOS Enabled Controller PO A Se Na Press lt Ctrl gt N to access the Ctrl Mgmt menu
94. outlet and remove the system cover Remove the storage controller from the PCle slot of the system JA CAUTION When removing or replacing the PERC Mini Monolithic Controller hold the card by its edges marked by the blue touch points Do not handle the card while holding the battery or the heatsink For more information see to the relevant figures below 25 Figure 1 Removing and Installing the PERC Adapter 1 PCle slot 2 SAS cable connectors 2 3 PERC adapter 4 screw 1 Figure 2 Removing and Installing the PERC Mini Blade Controller 26 1 release lever 2 2 PERC stack up connector 3 PERC mini blade controller 4 screws 2 Figure 3 Removing and Installing the PERC Mini Monolithic Controller 1 release lever 2 6 touch points 2 2 storage controller card holder 7 storage controller card connector on the 3 storage controller card system board 4 battery 8 guide pins 2 5 heatsink Installing The PERC Controller To install the PERC controller 1 Perform a controlled shutdown of the system and attached peripherals 2 Disconnect the system from the electrical outlet and remove the system cover 27 3 Installthe storage controller in the appropriate controller slot and connect all the cables to the storage controller CAUTION When removing or replacing the PERC Mini Monolithic Controller hold the card by its edges marked by the blue touch points Do not handle the card
95. ow the battery to charge fully to resolve this problem If the problem persists the battery or controller memory may be faulty Contact Dell Technical Support Firmware Fault State Error Message Error Message Corrective Action Firmware is in Fault State Contact Dell Technical Support Foreign Configuration Found Error Message Error Message Probable Cause Corrective Action Foreign configuration s found on adapter Press any key to continue or ICT to load the configuration utility or F to import foreign configuration s and continue When a controller firmware detects a physical disk with existing foreign metadata it flags the physical disk as foreign and generates an alert indicating that a foreign disk was detected Press lt F gt at this prompt to import the configuration if all member disks of the virtual disk are present without loading the BIOS Configuration Utility lt Ctrl gt lt R gt Or press lt C gt to enter the BIOS Configuration Utility lt Ctrl gt R and either import or clear the foreign configuration 75 Foreign Configuration Not Found In lt Ctrl gt R Error Message Error Message Corrective Action The foreign configuration message is present during POST but no foreign configurations are present in the foreign view page in lt Ctrl gt lt R gt All virtual disks are in an optimal state Corrective Action Ensure all your PDs are present and all VDs are
96. owerVault MD1220 disk storage enclosures Perform the following steps to configure the hardware to utilize redundant paths on the PERC H810 card 1 Set up an enclosure on the PERC H810 card 2 Connect two SAS cables from the Out ports on your PERC H810 card to the In ports of the external enclosure For more information see the following figure NOTE For information on Unified Mode see the enclosure documentation that was shipped with the enclosure 3 To add multiple enclosures cable both Out ports of the first enclosure to both In ports of the next enclosure After you set up the hardware the controller detects the redundant paths and automatically utilizes them to balance the UO load Reverting To Single Path Support From Redundant Path Support For PERC H810 If you need to revert to single path support from redundant path support shut down the system and remove the exact same cables that were added to support redundant path support leaving only one connection between the controller and enclosures After you remove the cable and power up the system ensure that there are no warning messages during boot and that all virtual disks are online and optimal If you are using Dell OpenManage see the Dell OpenManage documentation at dell com support manuals for additional instructions 28 CAUTION Ifyou remove any cables other than the ones added to enable redundant path support the enclosure and disks can get disconnected and vir
97. perating system NOTE Use the BIOS Configuration Utility lt Ctrl gt lt R gt for initial setup and disaster recovery You can use advanced features through Dell OpenManage storage management application and Dell SAS RAID storage manager The following sections provide information about using the BIOS Configuration Utility lt Ctrl gt R For more information see the online help option by pressing F1 in the BIOS Configuration Utility lt Ctrl gt R K NOTE The PERC PER H310 H710 H710P and H810 card configuration utility refreshes the screen to show changes to information The refresh occurs when you press F5 or every 15 seconds Entering The BIOS Configuration Utility Perform the following steps to enter the BIOS Configuration Utility lt Ctrl gt lt R gt when you boot the system 1 Turn onthe system 37 Exit A BIOS screen displays information about the controller and configuration During startup press lt Ctrl gt R when prompted by the BIOS screen Use the arrow keys to select the RAID controller you want to configure and press lt Enter gt to access the management menus for the controller If there is only one controller the Virtual Disk Management screen for that controller is displayed If there is more than one controller the main menu screen is displayed The screen lists the RAID controllers NOTE You can access multiple controllers through the BIOS Configuration Utility lt Ctrl g
98. pport for Self Monitoring and Reporting Technology SMART e Support for Patrol Read Redundant path support for PERC H810 only Physical disk failure detection Physical disk rebuild using hot spares e Controller Cache Preservation Battery and Non Volatile Cache backup of controller cache to protect data Detection of batteries with low charge after boot up The next sections describe some methods to achieve fault tolerance The SMART Feature The SMART feature monitors certain physical aspects of all motors heads and physical disk electronics to help detect predictable physical disk failures SMART compliant physical disks have attributes for which data can be monitored to identify changes in values and determine whether the values are within threshold limits Many mechanical and electrical failures display some degradation in performance before failure A SMART failure is also referred to as a predicted failure There are numerous factors that relate to predicted physical disk failures such as a bearing failure a broken read write head and changes in spin up rate In addition there are factors related to read write surface failure such as seek error rate and excessive bad sectors NOTE For detailed information on SCSI interface specifications see t10 org and for detailed information on SATA interface specifications see t13 org Automatic Replace Member With Predicted Failure A Replace Member operation can occur w
99. r Information Displays information about the controller e Change Controller Properties Updates controller properties and or restores factory defaults for the controller PCI link speed For systems capable of PCI Generation 3 link speeds an option will appear at the top of this screen named Change Link Speed to Gen 3 When selected the system will need to be rebooted If the system is currently using Gen 3 the option will read Change Link Speed to Gen 2 Boot Error Handling Selects the way errors found at boot are handled Stop on errors Interrupt the boot on all errors Requires the user to either continue boot or enter the BIOS Configuration Utility to resolve errors Pause on errors Interrupt the boot on serious errors Requires the user to either continue boot or enter the BIOS Configuration Utility to resolve errors Ignore errors The controller will take the default action for each error and will only halt boot when continuing is impossible 59 Safe mode on errors The system will continue booting as long as the boot volume is not on this controller Drives connected to the controller will be reported as unconfigured good drives to the RAID management utilities upon a successful boot No configuration changes will be allowed except to clear the controller configuration if desired Rebooting the system will exit safe mode and drives will appear as foreign on the next boot if problems remain the system will ente
100. r is detected on a physical disk in a redundant virtual disk Corrective Perform the following steps Action 1 Back up your data 2 Force the physical disk offline K NOTE If a hot spare is present the rebuild starts with the hot spare after the disk is forced offline 3 Replace the disk with a new physical disk of equal or higher capacity 4 Perform the Replace Member operation K NOTE The Replace Member operation allows you to copy data from a source physical disk of a virtual disk to a target physical disk that is not a part of the virtual disk For more information about the Replace Member feature see the topic Using Replace Member And Revertible Hot Spares 81 Smart Error Detected On A Physical Disk In A Non Redundant Virtual Disk Issue A SMART error is detected on a physical disk in a redundant virtual disk Corrective Perform the following steps Action 1 Back up your data 2 Use Replace Member or set up a global hot spare to replace the disk automatically NOTE For more information about the Replace Member feature see the topic Using Replace Member And Revertible Hot Spares 3 Replace the affected physical disk with a new physical disk of equal or higher capacity 4 Restore from the backup Replace Member Errors NOTE For more information about the Replace Member features see the topic Using Replace Member And Revertible Hot Spares Source Disk Fails During Replace Member Operation I
101. r safe mode again If the boot volume is on this controller boot will halt Battery Management Displays battery status and capacity information Clear Configuration Deletes all existing configurations on the controller Manage Foreign Configuration Displays import and or clears foreign configurations Save Controller Events Saves a copy of the controller events file in the desired directory Clear Controller Events Deletes all existing entries in the controller events file Save Debug Log Saves a copy of the firmware s terminal log entries for the controller Enable Security Enables security on the controller via the desired security mode Disable Security Disables security on the controller Change Security Key Changes the security key or switches between security modes on the controller Convert To RAID Capable Allows conversion of physical disks from Non RAID to RAID Capable Convert To Non RAID Allows conversion of physical disks from RAID Capable to Non RAID Virtual Disk Management The Virtual Disk Management menu can be used to create and manage virtual disks on the controller The following functions can be performed under Virtual Disk Management Each of these functions is its own selectable menu option Create Virtual Disk Creates a virtual disk by selecting the RAID level physical disks and virtual disk parameters Manage Virtual Disk Properties Displays and manages virtual disk properties view a
102. rective Action All of the disks from your previous configuration are gone If this is an unexpected message then please power off your system and check your cables to ensure all disks are present Press any key to continue or press lt C gt to load the configuration utility The message indicates that some configured disks were removed If the disks were not removed they are no longer accessible The SAS cables for your system might be improperly connected Check the cable connections and fix any issues before restarting the system If there are no cable problems press any key or lt C gt to continue Missing Virtual Disks Error Message Error Message Probable Cause 72 The following virtual disks are missing x If you proceed or load the configuration utility these virtual disks will be removed from your configuration If you wish to use them at a later time they will have to be imported If you believe these virtual disks should be present please power off your system and check your cables to ensure all disks are present Press any key to continue or C to load the configuration utility The message indicates that some configured disks were removed If the disks were not removed they are no longer accessible The SAS cables for your system might be improperly connected Corrective Action Check the cable connections and fix any issues Restart the system If there are no cable problems press any ke
103. ress and you start any of the following actions eA Full Initialization on the virtual disk eA Fast Initialization on the virtual disk e A Consistency Check on the virtual disk The following alert message is displayed The virtual disk is undergoing a background initialization process Would you like to stop the operation and proceed with the lt full initialization quick initialization consistency check gt instead Click Yes to stop the BGI and start the requested operation or No to allow BGI to continue Performing A Manual Rebuild Of An Individual Physical Disk A CAUTION If a physical disk is a member of a disk group that contains multiple virtual disks and one of the virtual disks is deleted when a rebuild operation is in progress the rebuild operation stops You can then resume the rebuild operation manually using a storage management application To avoid interruption ensure that none of the virtual disks are deleted until the rebuild is complete Use the following procedures to rebuild one failed physical disk manually 1 Press lt Ctrl gt lt N gt to access the PD Mgmt screen A list of physical disks is displayed The status of each disk is displayed under the heading State 2 Press the down arrow key to highlight a physical disk that has a failed state 3 Press F2 to display a menu of available actions The Rebuild option is highlighted at the top of the menu 4 Press the right arrow key to display the rebuild
104. rgo a BGI Full initialization can be performed after the creation of a virtual disk During full initialization the host is not able to access the virtual disk You can start a full initialization on a virtual disk by using the Slow Initialize option in the Dell OpenManage storage management application For more information on using the BIOS Configuration Utility to perform a full initialization see the topic Initializing Virtual Disks k NOTE If the system reboots during a full initialization the operation aborts and a BGI begins on the virtual disk Fast Initialization Of Virtual Disks A fast initialization on a virtual disk overwrites the first and last 8 MB of the virtual disk clearing any boot records or partition information The operation takes only 2 3 seconds to complete and is recommended when you are recreating virtual disks To perform a fast initialization using the BIOS Configuration Utility see the topic Initializing Virtual Disks Consistency Checks Consistency Check CC is a background operation that verifies and corrects the mirror or parity data for fault tolerant virtual disks It is recommended that you periodically run a consistency check on virtual disks You can manually start a CC using the BIOS Configuration Utility or the Dell OpenManage storage management application You can schedule CC to run on virtual disks using a Dell OpenManage storage management application To start a CC using the BIOS Configurati
105. rom a virtual disk if it becomes offline or is deleted The dirty cache cache is preserved until you import the virtual disk or discard the cache Delete a virtual disk Deletes the virtual disk and frees up disk space to create another virtual disk Delete a disk group Deletes a disk group which is a collection of disks from one or more disk subsystems controlled by management software 51 Physical Disk Management PD Mgmt The Physical Disk Management screen PD Mgmt displays physical disk information and action menus The screen displays physical disk IDs vendor names disk size type state and disk group DG You can sort the list of physical disks based on the headings You can perform several actions on the physical disks including the following Rebuilding physical disks Performing the Replace Member operation Setting the LED to blink Making a disk online or offline unaffiliated with a disk group Creating global hot spares Removing dedicated hot spares or global hot spares The PD Mgmt screen also displays several physical disk properties as shown in the following table Table 7 Information on the Physical Disk Management Screen Information Displayed in Left Panel Physical Disk Disk ID Protocol type Capacity GB Physical Disk State Disk Group Vendor Supported Information Displayed in Right Panel Security Property of Physical Disk Encryption Capable ProductID Firmware Revision Disk
106. rs Virtual Disk Policy Is Assumed As Write Through Error Message Driver Does Not Auto Build Into New Kernel U a 83 Unable To Register SCSI Device Error Message 83 Disk Carrier LED MAC TE 84 9 Appendix RAID Descriptio a L vit ia Ain tas a ob ka ki au do 85 SUMMANy OFRAID EE 85 RAID Terminology cc ccccccececscscsessccseccewisdseueseucecseusedsveceucdeveesedesesucreese ki ka e dl Ja aq ak aa aaa den Eka de kan Kan 85 DiSk SA PIN AY a kota AE heite hid Asana did ot kk See a et Ber kn m ko ae 85 DiSk MITTQ NAN EE 86 lf BIREN 86 Parity UE 86 Overview The Dell PowerEdge RAID Controller PERC H310 H710 H710P and H810 family of storage controller cards has the following characteristics Complies with serial attached SCSI SAS 2 0 providing up to 6 Gb sec throughput Supports Dell qualified serial attached SCSI SAS hard drives SATA hard drives and solid state drives SSDs E E NOTE Mixing SAS and SATA drives within a virtual disk is not supported Also mixing hard drives and SSDs within a virtual disk is not supported NOTE Mixing disks of different speeds 7 200 rpm 10 000 rpm or 15 000 rpm and bandwidth 3 Gbps or 6 Gbps PCle while maintaining the same drive type SAS or SATA and technology HDD or SSD is supported Offers RAID control capabilities which include support for RAID levels 0 1 5 6 10 50 and 60 k NOTE PERC H310 supports RAID 5 with limited performance and doe
107. s may also be grayed out if the feature is supported in existing configuration K NOTE Background operations are blocked on the PERC H310 controller in the UEFI RAID Configuration Utility and no operation progress updates are to be seen Exiting The UEFI RAID Configuration Utility To exit the UEFI RAID Configuration Utility press lt Esc gt or click on Back at any browser screen until you return to the Device Settings menu Configuration Options There are four main configuration option menus available in the UEFI RAID Configuration Utility These menus are outlined below Controller Management Performs controller properties foreign configurations and battery and other high level controller functions e Virtual Disk Management Creates or deletes virtual disks manage virtual disk properties and performs operations such as background initialization consistency check locate and reconfiguration Physical Disk Management Displays physical disk properties and performs operations such as assign or unassign hot spares locate force online offline and rebuild after a physical disk failure Enclosure Management Displays attached enclosures enclosure firmware revision and physical disks attached to the enclosures Controller Management Menu The Controller Management menu can be used to perform the following controller level functions Each of these functions is its own selectable menu option View Controlle
108. s not support RAID 6 and RAID 60 Provides reliability high performance and fault tolerant disk subsystem management Offers Non RAID support for direct access to disk drives PERC H310 only ka NOTE Operating systems can directly access Non RAID hard drives A Non RAID hard drive is not fault tolerant and cannot be recovered if it fails Only the PERC H310 controller allows configuration of disk drives as Non RAID The following table compares the hardware configurations for the PERC H310 H710 H710P and H810 cards Table 1 PERC H310 H710 H710P and H810 Cards Hardware Configurations Specification RAID Levels Enclosures Per Port Processor Backup Battery Unit BBU Non Volatile Cache Cache Memory Cache Function H310 0 1 5 10 50 Not Applicable Dell Adapter SAS RAID on Chip 8 port with LSI 2008 chipset No Not Applicable Not Applicable Not Applicable H710 0 1 5 6 10 50 60 Not Applicable Dell Adapter SAS RAID on Chip 8 port with LSI 2008 chipset Yes Yes 512 MB DDR3 800 Mhz Write Back Write Through Adaptive Read Ahead No Read Ahead Read Ahead H710P 0 1 5 6 10 50 60 Not Applicable Dell Adapter SAS RAID on Chip 8 port with LSI 2008 chipset Yes Yes 1 GB DDR3 1333 Mhz Write Back Write Through Adaptive Read Ahead No Read Ahead Read Ahead H810 0 1 5 6 10 50 60 Up to four enclosures Dell Adapter SAS RAID on Chip
109. s replaced or rebuilt If there are any Global or Dedicated Hot Spare assigned which fulfills the rebuild requirements for the degraded RAID1 disk a rebuild starts automatically If there is no Hot Spare assigned then a Hot Spare that meets all the requirements for the VD must be assigned before the rebuild starts NOTE Importing a Broken Mirror is the same as importing a Foreign configuration See the topic Importing Or Clearing Foreign Configurations Using The VD Mgmt Menu The imported VD is in a degraded state until the missing member is rebuilt Managing Preserved Cache If a virtual disk becomes offline or is deleted because of missing physical disks the controller preserves the dirty cache from the virtual disk The preserved dirty cache known as pinned cache is preserved until you import the virtual disk or discard the cache NOTE Certain operations such as creating a new virtual disk cannot be performed if preserved cache exists You have to enter the BIOS Configuration Utility lt Ctrl gt lt R gt to resolve the situation before you boot to the operating system Messages are displayed notifying you that you must enter the BIOS Configuration Utility lt Ctrl gt lt R gt to discard the preserved cache or import the virtual disks with the preserved cache CAUTION If there are any foreign configurations it is strongly advised that you import the foreign configuration before you discard the preserved cache Otherwise you
110. s virtual disks in a degraded state Corrective To make the virtual disks optimal take one the following corrective actions Action Ensure all disks in the Virtual Disk are present and online Replace any failed disks that may be in the array Correct a hot spare disk and rebuild the array The BIOS does not take any action 74 Virtual Disks Partially Degraded Error Message Error Message Probable Cause Corrective Action x Virtual Disk s Partially Degraded where x is the number of virtual disks partially degraded This message is displayed when the BIOS detects a single disk failure in a RAID 6 or RAID 60 configuration You must check why the member disk is not present to correct the problem The BIOS does not take any action Memory Or Battery Problem Error Message Error Message Probable Cause Corrective Action Memory Battery problems were detected The adapter has recovered but cached data was lost Press any key to continue The message occurs under the following conditions The adapter detects data in the controller cache that has not yet been written to the disk subsystem The controller detects an Error Correcting Code ECC error while performing its cache checking routine during initialization e The controller discards the cache rather than sending it to the disk subsystem because the data integrity cannot be guaranteed e The battery may be under charged All
111. sks 1 Onthe VD Mgmt screen select Virtual Disk and press F2 to display the menu of available actions Select Initialization and press the right arrow key to display the Initialization submenu options Select Start Init to begin a regular initialization or select Fast Init to begin a fast initialization A pop up window is displayed indicating that the virtual disk has been initialized 4 Repeat the procedures from step 1 to step 3 to configure another virtual disk NOTE The PERC H310 card supports up to 16 virtual disks per controller and the PERC H710 H710P and H810 cards support up to 64 virtual disks per controller The currently configured virtual disks display on the screen Checking Data Consistency Select the Consistency Check CC option in the configuration utility to verify the redundancy data in virtual disks that use RAID levels 1 5 6 10 50 and 60 RAID 0 does not provide data redundancy If you attempt to run a Consistency Check on a virtual disk that has not been initialized the following error message is displayed The virtual disk has not been initialized Running a consistency check may result in inconsistent message in the log Are you sure you want to continue You can select Yes or No If you select Yes the CC operation continues If you select No the operation ends Running A Data Consistency Check To perform a consistency check Press lt Ctrl gt N to access the VD Mgmt menu screen
112. so that a virtual disk can simultaneously have its RAID level changed and its capacity increased When a RLM OCE operation is complete a reboot is not required See the following table for a list of RLM OCE possibilities The source RAID level column indicates the virtual disk RAID level before the RLM OCE and the target RAID level column indicates the RAID level after the operation has completed k NOTE If the controller already contains the maximum number of virtual disks you cannot perform a RAID level migration or capacity expansion on any virtual disk E NOTE The controller changes the write cache policy of all virtual disks undergoing a RLM OCE to Write Through until the RLM OCE is complete Table 3 RAID Level Migration Source RAID Target RAID Level Number of Number of Capacity Description Level Physical Disks Physical Disks Expansion Beginning End Possible RAID 0 RAID 0 1 2 or more Yes Increases capacity by adding disks RAID 0 RAID 1 1 2 No Converts non redundant virtual Source RAID Level RAID O RAID O RAID 1 RAID 1 RAID 1 RAID 5 RAID 5 RAID 5 RAID 6 Target RAID Level RAID 5 RAID 6 RAID O RAID 5 RAID 6 RAID O RAID 5 RAID 6 RAID O Number of Physical Disks Beginning 1 or more 1 or more 3 or more 3 or more 3 or more 4 or more Number of Physical Disks End 3 or more 4 or more 2 or more 3 or more 4 or more 3 or more 4 or mor
113. ssociated physical disks and manage dedicated hot spares Select Virtual Disk Operations Selects and executes virtual disk operations such as delete locate secure expand initialization and consistency check View Disk Group Properties Displays information about the available disk groups associated virtual disks and the capacity allocation Reconfigure Virtual Disks Performs a RAID Level Migration RLM which converts a virtual disk to a different RAID level Create CacheCade Virtual Disks Creates a CacheCade virtual disk by selecting solid state disks SSDs Physical Disk Management Menu The Physical Disk Management menu can be used to view and manage physical disks on the controller The following functions can be performed under Physical Disk Management Each of these functions is its own selectable menu option View Physical Disk Properties Displays information about all the physical disks including their state Select Physical Disk Operations Selects and execute physical disk operations such as locate assign unassign hot spare replace member force offline online and convert to RAID Capable Non RAID View Global Hot Spares Displays all the assigned global hot spares on the controller Enclosure Management The Enclosure Management menu can be used to view the firmware version of the enclosure and the physical disks attached to the controller along with their physical disk states 60 CacheCade The
114. ssue The source disk fails during the Replace Member operation Corrective If the source data is available from other disks in the virtual disk the rebuild begins Action automatically on the target disk using the data from the other disks Target Disk Fails Issue The target disk fails Corrective If the target disk fails the Replace Member operation aborts Action General Disk Fails Issue A general disk fails Corrective If the target disk fails and the Replace Member operation aborts but the source data is still Action available then the Replace Member operation continues as Replace Member Linux Operating System Errors Virtual Disk Policy Is Assumed As Write Through Error Message Error lt Date Time gt lt HostName gt kernel sdb asking for cache data failed writ lt Date Time gt lt HostName gt kernel sdb assuming drive cache through 82 Corrective The error message is displayed when the Linux Small Computer System Interface SCSI mid Action layer asks for physical disk cache settings The controller firmware manages the virtual disk cache settings on a per controller and a per virtual disk basis so the firmware does not respond to this command The Linux SCSI mid layer assumes that the virtual disk s cache policy is Write Through SDB is the device node for a virtual disk This value changes for each virtual disk See the topic Write Back And Write Through for more information about Write Throug
115. t lt R gt by pressing lt F12 gt NOTE You can access PERC H700 H800 H310 H710 H710P or H810 cards from the same BIOS if the PERC 6 H700 H800 firmware is 6 2 0 0013 or later ing The Configuration Utility To exit the BIOS Configuration Utility lt Ctrl gt R 1 4 Press Esc on any menu screen Ifthere is only one controller then a dialog box is displayed to confirm your choice Select OK to exit and press Enter If multiple controllers are present then the lt Esc gt key brings you to the Controller Selection screen Press Esc again to reach the exit screen A dialog box is displayed to confirm your choice Select OK to exit and press Enter Menu Navigation Controls The following table displays the menu keys you can use to move between the different screens in the BIOS Configuration Utility lt Ctrl gt R Table 4 Menu Navigation Keys Notation Meaning and Use Example right Use the right arrow key to open a submenu move Start Programs arrow from a menu heading to the first submenu or move key to the first item in that submenu If you press the right arrow key at a menu heading the submenu expands Press it again to go to the first item in the submenu The right arrow key is also used to close a menu list in a popup window Word wrap is supported left Use the left arrow key to close a submenu move Controller 0 Disk Group 1 arrow from a menu item to the menu head
116. t are configured as part of a virtual disk including hot spares Patrol Read does not run on physical disks that are not part of a virtual disk or are in Ready state Patrol Read adjusts the amount of controller resources dedicated to Patrol Read operations based on outstanding disk 1 0 For example if the system is busy processing 1 0 operation then Patrol Read uses fewer resources to allow the 1 0 to take a higher priority Patrol Read does not run on any disks involved in any of the following operations Rebuild Replace Member Full or Background Initialization CC RLMorOCE NOTE By default Patrol Read automatically runs every seven days on configured SAS and SATA hard drives Patrol Read is not necessary on SSD and is disabled by default For more information on Patrol Read see the Dell OpenManage documentation at dell com support manuals Redundant Path Support For PERC H810 Only The PERC H810 adapter can detect and use redundant paths to disks contained in enclosures This provides the ability to connect two SAS cables between a controller and an enclosure for path redundancy The controller is able to tolerate the failure of a cable or Enclosure Management Module EMM by utilizing the remaining path When redundant paths exist the controller automatically balances 1 0 load through both paths to each disk Load balancing increases throughput to virtual disks in storage enclosures and is automatically
117. t be equal to or greater than the smallest contributing disk in the virtual disk Manual Resizing Of CacheCade Virtual Disks In operating system management applications a manual resizing of a CacheCade virtual disk occurs due to the addition or removal of drives Reboot is not necessary 63 64 Any number of SSDs can be added to a CacheCade virtual disk There is no SAS and SATA mixing allowed within a CacheCade virtual disk so SATA SSDs cannot be added to a SAS CacheCade virtual disk and vice versa HDDs cannot be added to a CacheCade virtual disk NOTE Capacity of drives added to a CacheCade volume must be equal to or greater than the smallest contributing drive in the virtual disk The manual resizing of a CacheCade virtual disk cannot be initiated in the BIOS Configuration Utility It can only be initiated in the OpenManage storage management application Security Key And RAID Management E NOTE PERC H310 does not support any security implementations Security Key Implementation The Dell PowerEdge RAID Controller PERC H710 H710P and H810 cards support Self Encrypting Disks SED for protection of data against loss or theft of SEDs Protection is achieved by the use of encryption technology on the drives There is one security key per controller You can manage the security key under Local Key Management LKM The key can be escrowed in to a file using Dell OpenManage The security key is used by the controller to lock an
118. the Secure Foreign Import screen is displayed NOTE The key identifier for the passphrase used to secure the foreign secured virtual disks is displayed under the Secured Drives option Enter the passphrase that was used to secure the foreign configuration Press lt Tab gt and select OK to finish importing the secured foreign configuration or select Cancel to exit this menu If you select Cancel for the secured foreign import the disks remain inaccessible until imported or instant secure erased See the topic Instant Secure Erase Instant Secure Erase Instant Secure Erase is the process of permanently erasing all data on an encryption capable physical disk and resetting the security attributes You need to execute Instant Secure Erase on SEDs that are inaccessible blocked due to a lost or forgotten passphrase A CAUTION By executing Instant Secure Erase the data on your encryption capable physical disk is lost To execute Instant Secure Erase 1 Press lt Ctrl gt N to access the PD Mgmt screen A list of physical disks is displayed On the right menu the physical disk properties are displayed including information about whether the physical disk is secured or not 2 Press the down arrow key to highlight a physical disk that is secured 3 Press F2 to display a menu of available actions 4 The Secure Erase option is highlighted at the bottom of the menu 5 Press lt Enter gt to Secure Erase the physical disk and se
119. the driver Select Start Settings Control Panel System The System Properties screen is displayed K NOTE The path to System might vary depending on the operating system family Click on the Hardware tab Click Device Manager The Device Manager screen is displayed K NOTE The path to Device Manager might vary depending on the operating system family Expand SCSI and RAID Controllers by double clicking the entry or by clicking on the plus symbol next to SCSI and RAID Controller K NOTE In Windows 2008 and Windows 2008 R2 the PERC card is listed under Storage Controllers Double click the RAID controller for which you want to update the driver Click the Driver tab and click Update Driver The screen to update the device driver wizard is displayed Select Install from a list or specific location Click Next Follow the steps in the wizard and browse to the location of the driver files Select the INF file from the driver media CD DVD or other media Click Next and continue the installation steps in the wizard Click Finish to exit the wizard and reboot the system for the changes to take place K NOTE Dell provides the Dell Update Package DUP to update drivers on systems running Windows Server 2008 or Windows Server 2008 R2 operating system DUP is an executable application that updates drivers for specific devices DUP supports command line interface and silent execution For more information see
120. tion on performing a physical disk rebuild see the topic Performing A Manual Rebuild Of An Individual Physical Disk Several of the controller configuration settings and the virtual disk settings affect the actual rate of rebuild The factors include the rebuild rate setting virtual disk stripe size virtual disk read policy virtual disk write policy and the amount of workload placed on the storage subsystem For information on getting the best rebuild performance from your RAID controller see the documentation at dell com support manuals The listed rates in the following table were taken during single disk failure with no 1 0 present on a PERC H810 card connected to a single PowerVault MD1220 enclosure Rates vary depending on type speed and number of hard drives present in array as well as which controller model and enclosure configuration are being used Table 9 Estimated Rebuild Rates RAID Level Numberof Hard Drives 7 2KRPM6Gb s SAS Hand 15K RPM 6 Gb s SAS Hard Drive Drive RAID 1 2 320 GB hour 500 GB hour RAID 5 6 310 GB hour 480 GB hour RAID 10 6 320 GB hour 500 GB hour RAID 5 24 160 GB hour 240 GB hour RAID 10 24 380 GB hour 500 GB hour Controller Management Ctrl Mgmt The Controller Management screen Ctrl Mgmt displays the product name package firmware version BIOS version boot block version controller ID security capability and security key presence Use the screen to perform actions on the controller
121. tual disk may fail Perform the following steps to configure the hardware to utilize redundant paths on the PERC H810 card 1 Setup an enclosure on the PERC H810 card 2 Connect two SAS cables from the Out ports on your PERC H810 card to the In ports of the external enclosure For more information see the following figure NOTE For information on Unified Mode see the enclosure documentation that was shipped with the enclosure 3 To add multiple enclosures cable both Out ports of the first enclosure to both In ports of the next enclosure 4 After you set up the hardware the controller detects the redundant paths and automatically utilizes them to balance the UO load PERC H810 Figure 4 Redundant Path Support Configuration With Two Enclosures 1 server 2 storage 29 30 4 Driver Installation The Dell PowerEdge RAID Controller PERC H310 H710 H710P and H810 cards require software drivers to operate with the supported operating systems This chapter contains the procedures for installing the drivers for the PERC H310 H710 H710P and H810 cards NOTE For more information on VMware ESX drivers see the VMware ESX documentation at dell com support manuals K NOTE To check operating system compatibility see dell com support manuals The two methods for installing a driver discussed in this chapter are Installing a driver Use this method if you are performing a new installation of the operating system an
122. ual Disken 61 CacheCade Virtual Disk Management 62 Creating CacheCade Virtual Disks tent teat taa eat anan aaa atan a sesa oanonosone sone n aa 62 Deleting CacheCade Virtual Disken 63 Reconfiguring CacheCade Virtual Disken 63 Automatic Reconfiguration Of CacheCade Virtual Disken 63 Manual Resizing Of CacheCade Virtual Disken 63 7 Security Key And RAID Management seent 65 SECUrity Key Implementations is vive devenn gen oue pwe pab pake ke l kwa fok w pw p n kk bd ak aquqa aa pa yk aasawa aa astaga 65 Security Key Management In The BIOS Configuration Ulm 65 Local Key Management IUKMI I L n 65 Creating A Sec rity Key u lu una GS ha aqa mak ol Lod a u Sha khapu h Saphana Po bs ap kaa Changing The Security Key Deleting A Security Key u u uuu EENS E Creating Secured Virtual Disk 67 Securing Pre Existing Virtual Disks I l Sua 67 Securing Pre Existing Virtual Disks M naa 68 Importing Or Clearing Secured Foreign Configurations And Secure Disk Migration 68 Instant S CUne Praseu y dout oka da Gua kasaqku Qhatu ba Troubleshooting Security Key Errors Secured Foreign Import Error Failure to Select Or Configure Non Self Encrypting Disks Non SED 69 Failure To Delete Sec rity Keys su aaa ou kak n do n ks edd 70 Failure To Instant Secure Erase Task On Physical Disken 70 ST FOUL SSH OO UN Bek ai fo op a Acti kt n ti ko e A E bi an n BI
123. uired to process a given 10 It also ensures that the optimal 10 code path is placed close to the processor to allow faster access when processing the 10 Under specific conditions with FastPath the 10 by passes the controller cache and is committed directly to the physical disk from the host memory through the second core of the dual core RAID on Chip ROC on the controller FastPath and CTIO are both ideal for random workloads with small blocks k NOTE The PERC H310 and PERC H710 do not support FastPath Both CTIO and FastPath provide enhanced performance benefits to SSD volumes as they can fully capitalize on the lower access times and latencies ofthese volumes FastPath provides 10 performance benefits to rotational HDD based volumes configured with Write Through and No Read Ahead cache policies specifically for read operations across all RAID levels and write operations for RAID 0 Configuring FastPath Capable Virtual Disks All simple virtual disks configured with write cache policy Write Through and read cache policy No Read Ahead can utilize FastPath Only 10 block sizes smaller than virtual disk s stripe size are eligible for FastPath In addition there should be no background operations rebuild initialization running on the virtual disks FastPath will not be used if these operations are active k NOTE RAID 10 RAID 50 and RAID 60 virtual disks cannot use FastPath The following table summarizes the FastPath eligibility
124. ured foreign configuration s do not show in the Foreign Configuration View screen Follow the steps below to import or clear a foreign secured virtual disk NOTE If you are importing secured and unsecured virtual disks you are prompted to resolve the secured foreign configuration first NOTE The PERC H710 H710P or H810 card needs to have a security key present before being able to import a secured virtual disk NOTE Any unsecured virtual disks imported are still unsecured NOTE If you are importing a virtual disk originally secured with a local key LKM you are prompted for the passphrase used to secure that virtual disk NOTE A secured VD cannot be imported using the PERC H310 card EN NE D H Perform the following steps when importing a foreign secured virtual disk 1 During the host system bootup press Ctrl R when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed 2 Select a controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller 68 Press F2 to display a menu of available actions Select Import to import the foreign configuration or Clear to delete the foreign configuration Press Enter K NOTE To Clear you need to Instant Secure Erase foreign configurations secured with a different security key 5 Ifyou select to Import the configuration
125. urity key on the controller Press Tab and select OK to accept the settings and to exit the window Select Cancel to exit if you do not want to change the security key on the controller K NOTE If there is an existing configuration on the controller it is updated with the new security key If you had previously removed any secured disks you still need to supply the old passphrase to import them Deleting A Security Key K NOTE Delete Key is active if there is a security key present on the controller K NOTE Delete Key can only be performed when there are no secured virtual disks present K NOTE After the Delete Key operation all unconfigured secured SEDs are secure erased Perform the following steps when deleting the security key on the controller 1 During host system bootup press lt Ctrl gt lt R gt when the BIOS screen is displayed The Virtual Disk Management screen is displayed If there is more than one controller the main menu screen is displayed 2 Selecta controller and press lt Enter gt The Virtual Disk Management screen is displayed for the selected controller Use the arrow keys to highlight Security Key Management Press lt F2 gt to display the actions you can perform Select the Delete Key and press lt Enter gt Creating Secured Virtual Disks To create a secured virtual disk the controller must have a security key established first See the topic Creating A Security Key NOTE Combining SA
126. vell and SUSE are registered trademarks of Novell Inc in the United States and other countries Oracle is a registered trademark of Oracle Corporation and or its affiliates Citrix Xen XenServer and XenMotion are either registered trademarks or trademarks of Citrix Systems Inc in the United States and or other countries VMware vMotion vCenter vCenter SRM and vSphere are registered trademarks or trademarks of VMware Inc in the United States or other countries IBM is a registered trademark of International Business Machines Corporation 2013 03 Rev A02 Contents TOV GIG WW bokou bank ik ko ok on a Sa Sa u u qu Supported Operating Systems Getting Hel oke q teach hd u a dl Gate ke ken da rd ea napa de EE Contacting Di l e ga yu Ly S nu a da ka n De wo na mi kn uwa ka a aut Dai m Das 11 R l ted Documentation a ae pd e pwa a a ka a a l kl an kika da Ee 11 Documentation Feedback ENEE 11 E s siw kaa isk ka ia kra a ak ak a a kr ak ka ek ad ok kan pi k 13 Physical Disk Power Management 13 Configured Spins Down D lay uu asa a n nein bed ak de n a n on kai Qa pan kap kodak k s cancel 13 Types Of Virtual Disk Initialization l U l u 14 Background Initialization Of Virtual Disken 14 Full Initialization Of Virtuali Disken Fast Initialization Of Virtual Disks GONSIStENCY CHECKS eee nonb a ana de a a oi tenb de ka kk b n bf e ad kr aks kd na kn pa sd kl n kt n pd dap pt km aa u TAO
127. w Bang In Device Manager PERC Card Not Seen In Device Manager No Hard Drives Found Error Message During Microsoft Windows Server 2003 Installation 78 Physical Disk gege ste aie en ab aaa a pi eed e v DA a ada ak be e ka a ka l n pi a ns 79 Physical Disk In Failed State u 79 Unable to Rebuild A Fault Tolerant Virtual Disk 79 Fatal Error Or Data Corruption Reported I L a 79 Physical Disk Displayed As Blocked Multiple Disks Become Inaccessible Rebuilding A Failed Physical Disk Virtual Disk Fails During Rebuild Using A Global Hot Spare 80 Virtual Disk Fails During Rebuild Using A Dedicated Hot Spare 80 Physical Disk Fails During Reconstruction On Redundant Virtual Disk 81 Virtual Disk Fails Rebuild Using A Dedicated Hot Spare AEN 81 Physical Disk Takes A Long Time To Rebuild SMART EOTS kontt aaa b bonda mahu n da ad aa wal a ede ak anan de Sak down sale ie Smart Error Detected On A Physical Disk In A Redundant Virtual Disk Smart Error Detected On A Physical Disk In A Non Redundant Virtual Disk 82 Replace Member ENMO AS ene det reason val ize tn DESEN f nk unas a ia pan l en tidi en paka eana kai e eene 82 Source Disk Fails During Replace Member Dperation U a 82 Target Disk Fall ii or kis atan G un kau e a a ka ke a bid a QM be ak Pe pwo dal kk Run in aki satan General Disk Fa e y sp tuy anaku ek a na ki ked S ku aaa uha Sy na ank Si Linux Operating System Erro
128. while holding the battery or the heatsink For more information see the relevant figures in Removing The PERC Controller 4 Replace the system cover 5 Reconnect the system to its electrical outlet and turn the system on including any attached peripherals Support For Internal Multiple Controllers On PowerEdge systems with dual bays backplanes the disk drives are managed by independent PERC H710P cards The PERC H710P cards do not share the disks or the RAID volumes A drive can be identified using the following as guideline Controller Bay Backplane Slot Setting Up Redundant Path Support On The PERC H810 Adapter The PERC H810 card can detect and use redundant paths to disks contained in enclosures With redundant paths to the same device if one path fails another path can be used to communicate between the controller and the device To set up a configuration with redundant paths both ports on a controller must be cabled to the In ports of a single enclosure To add multiple enclosures both Out ports of the first enclosure must be cabled to the In ports of the next enclosure If the connection between an Out port on the controller and an In port on an enclosure fails an alternate path exists through the second Out port on the controller and the second In port on the enclosure For more information see the following figure NOTE The PERC H810 card supports redundant paths when used with Dell PowerVault MD1200 and Dell P
129. xit the BIOS Configuration Utility lt Ctrl gt lt R gt Press lt Tab gt to move the cursor to the next control on a dialog box or page Press lt Shift gt lt Tab gt to move the cursor to the previous control on a dialog or page Press lt Ctrl gt lt N gt to move to the next menu screen among the main menu screens VD Mgmt PD Mgmt Ctrl Mgmt and Foreign View Press lt Ctrl gt lt P gt to move to the previous menu screen among the main menu screens VD Mgmt PD Mgmt Ctrl Mgmt and Foreign View Press lt F1 gt to access Help information The Help screens display a glossary of topics you can use to access information about navigation RAID levels and general topics Press lt F2 gt to access the context menu which displays the list of options Press lt F5 gt to refresh the information on the screen Switch between two controllers Press lt F12 gt to display a list of controllers Press the lt spacebar gt to select an item Setting Up Virtual Disks Example Virtual Disk 1 D Virtual Disk 4 Select Add New VD and press Enter to create a new virtual disk Press Esc to return to the VD Mgmt screen Press lt Tab gt to move the cursor to the next parameter you want to change Press lt Shift gt lt Tab gt to move the cursor from Sort By to the previously selected PD in the PD Mgmt screen Press lt Ctrl gt lt N gt on the VD Mgmt screen to move to the PD Mgmt screen Press lt
130. y This message is displayed under the following conditions e The adapter detects that the cache in the controller cache has not yet been written to the disk subsystem 71 Corrective Action The controller detects an Error Correcting Code ECC error while performing its cache checking routine during initialization e The controller discards the cache rather than sending it to the disk subsystem because the data integrity cannot be guaranteed To resolve this issue allow the battery to charge fully If the problem persists the battery or controller memory may be faulty contact Dell Technical Support Missing Disks In Virtual Disk Error Message Error Message Probable Cause Corrective Action The following virtual disks have missing disks x If you proceed or load the configuration utility these virtual disks will be marked OFFLINE and will be inaccessible Pleas check your cables and ensure all disks are present Press any key to continue or C to load the configuration utility The message indicates that some configured disks were removed If the disks were not removed they are no longer accessible The SAS cables for your system might be improperly connected Check the cable connections and fix any issues Restart the system If there are no cable problems press any key or lt C gt to continue Previous Configuration Of Disks Removed Error Message Error Message Probable Cause Cor
131. y or lt C gt to continue Dirty Cache Data Error Message Error Message Probable Cause Corrective Action The following virtual disks are missing x If you proceed or load the configuration utility these virtual disks will be removed from your configuration If you wish to use them at a later time they will have to be imported If you believe these virtual disks should be present please power off your system and check your cables to ensure all disks are present Press any key to continue or C to load the configuration utility The cache contains dirty data but some virtual disks are missing or will go offline so the cached data cannot be written to disk If this is an unexpected error then please power off your system and check your cables to ensure all disks are present If you continue the data in cache will be permanently discarded Press X to acknowledge and permanently destroy the cached data The controller preserves the dirty cache from a virtual disk if the disk becomes offline or is deleted because of missing physical disks This message indicates that some configured disks were removed If the disks were not removed they are no longer accessible The SAS cables for your system might be improperly connected Check the cable connections and fix any problems Restart the system Use the lt Ctrl gt lt R gt utility to import the virtual disk or discard the preserved cache For the steps to manage pres

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