User's Guide
Contents
1. 25 Step 9 Install the Operating System Software Driver 25 Migrating Existing Non RAID Data to a CERC System 27 4 Configuring Arrays and Logical Drives Physical Drives 32 Physical Device Layout ii Lao a 00 33 Configuring Arrays i LLL 2 33 Arranging Arrays ecd u a S S CIS G Q 4 33 Creating Hot Spares 2 ee 34 Creating Logical Drives 0 34 Configuration Strategies 34 Configuring Logical Drives o a a 34 Contents 3 Logical Drive Configuration 35 Optimizing Data Storage 36 Planning the Array Configuration 37 Random Array Deletion 38 5 Troubleshooting General Problems and Solutions 40 BIOS Boot Error Messages 41 Other BIOS Error Messages 43 DOS ASPI Driver Error Messages 44 Other Potential Problems 45 6 Appendix A Regulatory LSI Logic Adapters FCC Compliance Statement 48 Canadian Compliance Industry Canada 49 Manufacturer Declaration 49 MIG b woo AM BARE a ele A u le Lie wiadcz 50 B Class Device 4 2 8 do di hit eee Den UA ele 4 50 VCCI Class B Statement 50 Index Za ie WAN Oz I 51 Contents 4 Contents SECTION I Overview Documentation www dell com2. No CERC Adapter The BIOS cannot communicate with the firmware on the RAID card Make sure the RAID card is properly installed Configuration of NVRAM and drives mismatch Run View Add Configuration option of Configuration Utility Press any key to run the Configuration Utility The configuration stored on the RAID card does not match the configuration stored on the drives When prompted press a key to run the BIOS Configuration Utility Select Configure gt View Add Configuration from the Management Menu Use View Add Configuration to examine both the configuration in the non volatile random access memory NVRAM and the configuration stored on the hard drives Resolve the problem by selecting one of the configurations Troubleshooting 41 www dell com support dell com 42 Troubleshooting Table 5 2 BIOS Boot Error Messages continued Message Problem Suggested Solution 1 Logical Drive Failed A logical drive failed to sign on Make sure all physical drives are properly connected and are powered on Run the BIOS Configuration Utility to find out whether any physical drives are not responding Reconnect or replace any drive that is not responding X Logical Drives Degraded x number of logical drives signed on in a degraded state Make sure all physical drives are properly connected and are powered on Run the BIOS Configuration
3. Table 2 6 Fault Tolerance Features lists the CERC fault tolerance features Table 2 6 Fault Tolerance Features Specification Feature Support for SMART Yes Drive failure detection Automatic Drive rebuild using hot spares Automatic Parity generation and checking Software Software Utilities Table 2 7 Software Utility Features displays the software utility features Table 2 7 Software Utility Features Specification Feature Graphical user interface Yes Management utility Yes Bootup configuration Yes Online read write and cache policy switching Yes Internet and intranet support through transmission Yes control protocol TCP internet protocol IP Operating System Software Drivers The CERC RAID controller includes drivers for the following operating systems Windows NT Windows 2000 e Novell NetWare 5 1 6 x Red Hat Linux 7 1 7 2 7 3 2 1 Advanced Server Features 15 www dell com support dell com 16 Features For information about installing drivers for other operating systems sce the CERC Operating System Driver Installation Guide F NOTE Be sure to use the latest Service Packs updates provided by the operating system manufacturer Visit the Dell Support web site at support dell com for the latest CERC operating system support information including new operating systems and the latest service packs and drivers Onboard Speaker The RA
4. 10 IDE data transfer rate 10 IDE device compatibility 9 installation steps 21 installing the RAID controller 23 J jumpers setting 21 Index 51 L Linux Red Hat 16 logical drive configuration 35 N non volatile RAM 10 Novell NetWare 15 0 onboard speaker 16 operating system software drivers 15 operating voltage 10 optimizing data storage 36 other BIOS error messages 43 P physical device layout 33 planning the array configuration 37 powering down the computer 21 processor 9 RAID card installing 23 RAID controller card layout 22 52 Index RAID levels supported 10 RAID management 16 RAID management features 13 regulatory information 47 S server management 9 setting up IDE devices 24 SMART technology 8 SNMP agent 9 software utilities 15 specifications 9 W WebBIOS 17 Windows NT 2000 15 Printed in the U S A P N 0P854 Rev A03 00 DOLL www dell com support dell com
5. 13 AF821 hl Ba 2121 ol JIVE 7 48 HHH 8 BB 8457 71 212124 FARSA SE SE AYO M ASB MGHCH Please note that this device has been approved for non business purposes and may be used in any environment including residential areas TZ VCCI Class B Statement COMMA RE ria Bi VCCI ORM KEJ TSA BSI WR ct CORB KEMRTEHIZLE EBNELTHIETA LOEMISIZZOFLEVI r RAR LT ERENSL Zila s T Lian ES FR ER WB Icio TELOMORENELTEF 2 Appendix A Regulatory LSI Logic Adapters Index A array performance features 13 ASPI drivers 26 ASPI manager 44 automatic failed drive detection and rebuild 14 B BIOS 10 BIOS boot error messages 41 BIOS Configuration Utility 16 25 BIOS message 24 bus data transfer rate 9 bus type 9 C cache configuration 10 cache memory 10 card size 9 CERC BIOS 11 CERC Manager 16 17 checklist 20 compatibility 9 Configuration on Disk 8 configuration strategies 34 configuring arrays 33 configuring logical drives 34 connecting IDE cables 24 connectors 21 CPU 10 D Dell Manager 16 devices per IDE channel 10 documentation 6 drive roaming 8 driver installation 25 drivers 25 E error failure codes 44 F fault tolerance features 14 firmware 10 formatting 38 H hardware architecture features 12 hardware requirements 9 I IDE backup and utility software 9 IDE cables connecting 24 IDE channels 6 IDE controller
6. BA A 10 Cache Memory wsz don MM AL Me DBZ td 10 GERGBTOSZ carini A An ARA 11 Configuration Features i 1 1111111 11 Hardware Architecture Features 12 Array Performance Features 13 RAID Management Features 13 Fault Tolerance Features 2 2 11111 14 Automatic Rebuild of Failed Drives 14 Manual Rebuild of Failed Drives 1 1 1 1 2 1 14 Software Utilities 15 Operating System Software Drivers 15 Contents 1 2 Onboard Speaker 0 0 16 RAID Management Utilities 16 BIOS Configuration Utility 16 Dell Manager LL 16 WebBIOS Configuration Utility 17 Dell OpenManage Array Manager 1 2 1 1 17 3 Hardware Installation Requirements i i LL 20 Hardware Installation Steps 20 Step E UNPACIE oi ee OE ei 21 Step 2 Power DOWN o w 4 mow a a b koki 21 Step 3r Set JumpepS wad ph da bad aw had 21 RAID Card Layout o sero eo topedo a Q e k aa S 5 22 Step 4 Install the RAID Controller 1 1 23 Step 5 Set Up the IDE Devices i 1 1 1 1 24 Step 6 Connect IDE Cables 2 2 2 08 25 bee ee ee 24 Step 7 Start the System LLL 2 ee 24 Step 8 Run the BIOS Configuration Utility
7. RAID card and configure the arrays and logical drives 20 Hardware Installation Step 1 Unpack Unpack and install the hardware in a static free environment The RAID controller is packed in an anti static bag between two sponge sheets Remove the card and inspect it for damage If the card appears damaged or if any item listed below is missing contact Dell support The RAID card is accompanied by the following items The CERC Configuration Software Guide on CD The CERC Operating System Driver Installation Guide on CD The CERC User s Guide on CD F NOTE If ordered you will receive hard copy documentation for the controller Dell OpenManage Array Manager on the Dell OpenManage Server Assistant CD Step 2 Power Down Turn off the computer and physically remove the power cord from the back of the power supply Remove the cover from the chassis Make sure the computer is disconnected from any networks before installing the controller card Step 3 Set Jumpers Make sure the jumper settings on the CERC RAID card are correct Table 5 1 Jumpers and Connectors displays the jumpers and connectors F NOTE Make sure that J2 J3 and J13 are unconnected Table 5 1 Jumpers and Connectors Connector Description Type J2 Force BIOS enable 2 pin header J Reserved 4 pin header J13 Reserved 2 pin header Hardware Installation 21 www dell com support dell com RAID Card Layout
8. Utility to find if any physical drives are not responding Reconnect replace or rebuild any drive that is not responding 1 Logical Drive Degraded A logical drive signed on in a degraded state Make sure all physical drives are properly connected and are powered on Run the BIOS Configuration Utility to find out if any physical drives are not responding Reconnect replace or rebuild any drive that is not responding Other BIOS Error Messages Table 5 3 Other BIOS Error Messages displays the other BIOS error messages that can display Table 5 3 Other BIOS Error Messages Message Problem Suggested Solution Following The physical disk roaming Resolve the mismatch i feature did not find the between controllers and disk not found and no emptv slot available for mapping it physical disk with the displayed drive ID No slot is available to map the physical drive and the RAID controller cannot resolve the physical drives into the current configuration drives Unresolved configuration mismatch between disks and NVRAM on the adapter The configuration stored in the NVRAM of the RAID controller does not match the configuration stored on the drives Press a key to run the BIOS Configuration Utility Select Configure gt View Add Configuration from the Management Menu Use View Add Configuration to examine both the configuration in NVRAM and the configuration stored on t
9. interference that may cause undesire operation A CAUTION If the device is changed or modified without permission of LSI Logic the user may void his or her authority to operate the equipment Appendix A Regulatory LSI Logic Adapters Canadian Compliance Industry Canada Canadian Regulatory Information Canada Only This digitial apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Note that the Canadian Department of Communications DOC regulations provide that changes or modifications not expressly approved by Intel could void your authority to operate the equipment This Class B digital apparatus meets all the requirements of the Canadian Interference Causing Equipment Regulations Cet appareil numerique de la classe B respecte toutes les exigences du Reglement sur la material brouilleur du Canada Manufacturer Declaration This certifies that this product is in compliance with EU Directive 89 336 EEC using the EMC standards EN55022 1988 Class B and EN55024 1988 This product also meets or exceeds EN60950 1992 safety requirements This product has been tested and certified to meet CISPR Class B requirements LSI Logic Corporation 6145 D Northbelt Parkway Norcross GA 30071 Appendix A Regulatory LSI Logic Adapters 49 www dell com support dell com MIC B Class Device
10. system User s Guide 9 Save the setting and exit 10 Insert the Dell OpenManage Server Assistant CD included with the RAID card into the CD drive and reboot the system Hardware Installation www dell com support dell com 28 Hardware Installation 11 12 Follow the prompts from the Server Assistant to set up RAID and install the operating system Restore the backed up data Migrating Data Without a Data Backup Device Perform the following steps if you do not have a data backup device 1 2 3 10 11 12 Insert the RAID card in one of the PCI slots Add extra IDE hard drives as needed Connect the added drives to the RAID card using the Ultra ATA100 cables included with the card NOTE The CERC card may show up as a PERC controller in some System Setup programs If so select the PERC controller as the boot device controller Start the system Press lt F2 gt during system bootup to enter the System Setup program Set the add in CERC card as the boot device controller Save the setting and exit For more details on how to set up the boot device controller in System Setup see your system User s Guide Insert the Dell OpenManage Server Assistant CD included with the RAID controller into the CD drive and reboot the system Follow the prompts from the Server Assistant to set up RAID and install the operating system The hard drives connected to the integrated IDE controller and the exist
11. Dell CERC ATA100 4 channel RAID Controller User s Guide DOLL www dell com support dell com Information in this document is subject to change without notice 2002 Dell Computer Corporation All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden Trademarks used in this text Dell the DELL logo Dell OpenManage and PowerEdge are trademarks of Dell Computer Corporation Microsoft Windows NT MS DOS and Windows are registered trademarks of Microsoft Corporation Intel is a registered trademark of Intel Corporation Novell and NetWare are registered trademarks of Novell Corporation IBM is a registered trademark of International Business Machines Corporation ASPI is a registered trademark of Adaptec Inc Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own November 2002 P N 0P854 Rev A03 00 Contents 1 Overview Documentation LLL 111111 6 2 Features SMART Technology i 5 2 LLL 101 8 Configuration on Disk 8 Compatibility 5 ie dem arate BS ba a 9 Hardware Requirements 9 CERC Specifications 2 9 PCT Bridge PUS Letonia RA bse Ko w ale W
12. Figure 5 1 RAID Card Layout shows the location of the channels jumpers flash BIOS and other features on the RAID card Figure 5 1 RAID Card Layout BIOS Enable Disable Channel 2 Channel 3 22 Hardware Installation Step 4 Install the RAID Controller Select a 3 3 V or 5 V PCI slot and align the RAID card bus connector to the slot as shown in Figure 5 3 Installation of RAID Card Press down gently but firmly to make sure that the card is properly seated in the slot The bottom edge of the controller card should be flush with the slot Figure 5 2 3 3 V and 5 V PCI Slots for RAID Controller displays the PCI slots on the motherboard Figure 5 2 3 3 V and 5 V PCI Slots for RAID Controller Edge of motherboard 3 3 VPCI Slot Only IL Emm Hardware Installation 23 www dell com support dell com 24 Hardware Installation Screw the bracket to the computer frame Figure 5 3 Installation of RAID Card Step 5 Set Up the IDE Devices Before you install the IDE devices you must set the drive as a master or cable select CS To do this see the documentation for the IDE drive Step 6 Connect IDE Cables Connect the IDE cables to IDE devices The RAID ca
13. ID card has an onboard speaker that generates audible warnings when system errors occur RAID Management Utilities Software utilities enable you to manage and configure the RAID system and CERC create and manage multiple disk arrays control and monitor multiple RAID servers provide error statistics logging and provide online maintenance The utilities include BIOS Configuration Utility Dell Manager WebBIOS Configuration Utility Dell OpenManage Array Manager BIOS Configuration Utility The BIOS Configuration Utility configures and maintains RAID arrays formats hard drives and manages the RAID system It is independent of any operating system See the CERC Configuration Software Guide for additional information Dell Manager Dell Manager is a character based utility that works in DOS Red Hat Linux 7 1 7 2 and 7 3 and Novell NetWare 5 1 and 6 x See the CERC Configuration Software Guide for additional information WebBI0S Configuration Utility WebBIOS is an HTML based utility used to configure and manage a RAID system on a server See the CERC Configuration Software Guide for additional information Dell OpenManage Array Manager Dell OpenManage Array Manager is used to configure and manage a storage system that is connected to a server while the server is active and continues to handle requests Array Manager runs under Novell NetWare Windows NT and Windows 2000 Refer to Dell documentation at the De
14. e BIOS Configuration Utility is described in the CERC Configuration Software Guide Configuration Features Table 2 2 Configuration Features displays the CERC configuration features Table 2 2 Configuration Features Specification Feature RAID levels 0 1 5 and 10 IDE channels Four Maximum number of drives per channel One Array interface to host PCI 2 2 Drive interface Supports up to four ATA UDMA 100 drives Four internal IDE connectors one drives per channel Drive modes supported e UDMA 5 4 3 2 1 0 e MDMA 2 1 0 e PIO 4 3 2 1 0 Cache size 16 MB of 32 bit 66 MHz On board ECC SDRAM Memory Cache function Write through write back adaptive read ahead no read ahead read ahead Multiple logical drives arrays per controller Up to 40 logical drives per controller Maximum number of CERC controllers 1 per system Online capacity expansion Yes Dedicated and pool hot spare Yes Features 11 www dell com support dell com 12 Features Table 2 2 Configuration Features continued Specification Feature Flashable firmware Yes Hot swap devices supported Yes Non disk devices supported No Mixed capacity hard drives Yes Number of 16 bit internal IDE Four connectors Support for hard drives with capacities Yes of more than 8 GB Clustering support Failover control No Online RAID level migration Yes RAID remapping Ye
15. facturer Model Number Firmware Level Configuring Arrays Organize the physical drives into arrays groups of drives after the drives are connected to the RAID card formatted and initialized An array can consist of up to four physical drives depending on the RAID level The RAID card supports up to four arrays The number of drives in an array determines the RAID levels that can be supported Arranging Arrays You must arrange the arrays to organize the data on the drives and allow you to create system drives that can function as boot devices You can sequentially arrange arrays with an identical number of drives so that the drives in the group are spanned Spanned drives can be treated as one large drive Data can be striped across multiple arrays as one logical drive You can create spanned drives using the RAID management utilities BIOS Configuration Utility Dell Manager WebBIOS Dell OpenManage Array Manager Configuring Arrays and Logical Drives 33 www dell com support dell com 34 Creating Hot Spares Any drive that is present formatted and initialized but not included in an array or logical drive can be designated as a hot spare Hot spares replace drives that fail You can use the RAID management utilities to create hot spares A NOTE For more information about using these utilities to create hot spares refer to the CERC Configuration Software Guide Crea
16. g voltage 5 00 V 0 25 V IDE controller Two IDE controllers for IDE support IDE data transfer rate Up to 100 MB s Devices per channel One IDE device per channel Up to four per CERC card RAID levels supported 0 1 5 and 10 PCI Bridge CPU The RAID card uses the Intel i960RS PCI bridge with an embedded 80960JT RISC processor running at 100 MHz The RS bridge handles data transfers between the primary host PCI bus the secondary PCI bus and CPU The DMA controller supports chaining and unaligned data transfers The embedded 80960JT CPU directs all controller functions including command processing IDE data transfers RAID processing drive rebuilding cache management and error recovery Cache Memory Cache memory for the RAID card resides in an unbuffered synchronous dynamic random access memory SDRAM The maximum achievable memory bandwidth is 528 MB s The RAID card supports write through or write back caching selectable for cach logical drive The default write policy is write through The default read policy for the RAID card is adaptive read ahead caching The other options for the read policy are read ahead and no read ahead NOTICE Write back caching is not recommended for the physical drives When write cache is enabled data can be lost when the power is interrupted CERC BIOS The BIOS provides an extensive setup utility that can be accessed by pressing lt Ctrl gt lt M gt at BIOS initialization Th
17. he hard drives Select one of the configurations 43 Troubleshooting www dell com support dell com 44 Troubleshooting DOS ASPI Driver Error Messages Table 5 4 DOS ASPI Driver Error Messages displays the error messages that can display when there is a problem with the DOS ASPI driver Table 5 4 DOS ASPI Driver Error Messages Message Corrective Action DOS ASPI has NOT been loaded The ASPI manager is not loaded One of the failure codes listed below is displayed next Controller setup FAILED error code Oxab Correct the condition that caused the failure The failure codes are 0x40 No RAID adapters found 0x80 Timed out waiting for interrupt to be posted 0x81 Timed out waiting for CERC response command 0x82 Invalid command completion count 0x83 Invalid completion status received 0x84 Invalid command ID received 0x85 No RAID adapters found or no PCI BIOS support 0x90 Unknown setup completion error ERROR VDS support is INACTIVE for CERC logical drives The h option is appended to driver in COMFIG SYS or this driver is used with a BIOS that is earlier than v1 10 or no logical drives are configured Other Potential Problems Table 5 5 Other Potential Problems displays other items that might cause problems Table 5 5 Other Potential Problems Topic Information DOS ASPI MEGASPI SYS the CERC DOS ASPI manager uses 6 KB of sys
18. he memory installed on the RAID controller Are all hard drives and the server protected by an uninterruptible power supply UPS Configuring Arrays and Logical Drives 37 www dell com support dell com 38 Random Array Deletion The CERC controller supports random array deletion which is the ability to delete any unwanted logical drives and use that space for a new logical drive F NOTE Refer to the CERC Configuration Software Guide for the procedures for random array deletion F NOTE When a delete request reaches the operating system driver the driver stops all the running input output 1 0 for other logical drives and processes the delete request first Normal read write operation starts after the delete request is completed After you delete a logical drive you can create a new one You can use the configuration utilities to create the next logical drive from the non contiguous free space holes and from the newly created arrays NOTICE The deletion of the logical drive can fail under certain conditions You cannot delete a logical drive during a reconstruction Deletion can fail during a rebuild initialization or check consistency of a logical drive if that drive has a higher logical drive number than the drive you want to delete The main benefit of random array deletion on the configuration module is that you are not restricted to sequential or contiguous logical drives when you crea
19. ing data display in the new file system Copy the data that you want to migrate to the new hard drives connected to the RAID card Turn off the system Disconnect the existing hard drives from the integrated IDE controller Either remove the drives or use them to connect to the RAID controller 13 Bootthe system 14 Press lt F2 gt during system boot to enter System Setup 15 Disable the integrated IDE controller For more details on disabling an integrated IDE controller in the System Setup program see your system User s Guide If you connect the existing hard drives to the RAID card you can use them by cither expanding the existing array on the RAID card or creating a new virtual disk on the RAID controller For details on array expansion or creating new virtual disk see Configuring Arrays and Logical Drives Hardware Installation 29 www dell com support dell com 30 Hardware Installation SECTION 4 Configuring Arrays and Logical Drives Physical Drives Configuring Arrays Planning the Array Configuration Random Array Deletion www dell com support dell com 32 You can install IDE hard drives in the system then use the configuration utilties such as the BIOS Configuration Utility to organize the hard drives into arrays or groups of drives You can then make the arrays part of a logical drive or drives In addition you can span the arrays The arrays and logical drives that y
20. ll Support web site at support dell com for more information Features 17 wos ep jaoddns wos ap mMM Features 18 SECTION 3 Hardware Installation Requirements Hardware Installation Steps Migrating Existing Non RAID Data to a CERC System www dell com support dell com Requirements You must have the following items to install the RAID controller A CERC RAID controller A host computer with an available PCI expansion slot The CERC RAID controller installation CD The necessary IDE cables An uninterruptible power supply UPS for the entire system IDE hard drives Hardware Installation Steps The following is an overview about installing the controller These steps are described in detail in the rest of this section 1 on O U R 9 Unpack the RAID controller and inspect for damage Make sure all items are in the package If damaged call your Dell Support Turn the computer off remove the power cord then remove the cover Check the jumper settings on the RAID controller The jumper J2 should not be shorted Install the RAID card Set the IDE devices to master or cable select CS Connect the IDE cables to IDE devices Replace the cover connect the power cord then turn the power on Run the BIOS Configuration Utility to configure arrays and logical drives Install software drivers for the desired operating systems Perform the following steps to install the
21. ment Canadian Compliance Industry Canada Manufacturer Declaration MIC VCCI Class B Statement www dell com support dell com 48 FCC Compliance Statement This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorientorrelocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help F NOTE This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including
22. mizing the disk subsystem capacity availability and performance Configuring Arrays and Logical Drives Servers that support Video on Demand typically read the data often but write data infrequently Both the read and write operations tend to be long Data stored on a general purpose file server involves relatively short read and write operations with relatively small files Array Functions You must first define the major purpose of the disk array Will this disk array increase the system storage capacity for general purpose file and print servers Does this disk array support any software system that must be available 24 hours per day Will the information stored in this disk array contains large audio or video files that must be available on demand Will this disk array contain data from an imaging system You must identify the purpose of the data to be stored in the disk subsystem before you can confidently select a RAID level and a RAID configuration Planning the Array Configuration Fill out the following form in Table 4 3 Planning the Array Configuration when planning an array configuration Table 4 3 Planning the Array Configuration Question Answer Number of physical drives in the array Purpose of this array Rank the following factors e Maximize drive capacity Maximize the safety of the data fault tolerance Maximize hard drive performance and throughput Number of hot spares Amount of cac
23. om Table 2 5 RAID Management Features Specification Feature RAID management utilities Yes BIOS Configuration Utility operating system independent e CERC Manager Novell NetWare Red Hat Linux e WebBIOS Configuration Utility e Dell OpenManage Array Manager on Dell OpenManage Server Assistant CD Novell NetWare Windows NT Windows 2000 Novell NetWare server support using a GUI client Yes utility Desktop management interface DMI support Yes Fault Tolerance Features The RAID card fault tolerance features are Automatic failed drive detection Manual failed drive rebuild Automatic Rebuild of Failed Drives If you use hot spares the firmware can automatically detect and rebuild failed drives using the hot spare The RAID controller support automatic rebuild only on hot spare drives The hot spare must have enough capacity to rebuild the data that was on the failed drive See Creating Hot Spares in Configuring Arrays and Logical Drives Manual Rebuild of Failed Drives The rebuild is not automatic under any of the following conditions You don t use hot spares The hot spares don t have enough capacity to rebuild the failed drive and you replace the drive manually You need to use the configuration utilities to perform the rebuild 14 Features IDE drive hot swap is not supported by the system or a hot swap is not performed even though the system supports hot swap
24. ou construct must be able to support the RAID level that you select This section describes configuration for physical drives arrays and logical drives and contains tables you can complete to list the configuration for the physical drives and logical drives This section covers the following topics Guidelines for connecting and configuring IDE devices Array creation llotspares Configuration strategies Logical drive configuration Array configuration planner Random array deletion Physical Drives You should observe the following guidelines when connecting and configuring IDE devices in a RAID array e Attach hard drives as masters on each IDE channel You can place up to four physical drives in an array depending on the RAID level Itis recommended that you include all drives that have the same capacity in the same array Make sure any hot spare has a capacity that is at least as large as the largest drive that may be replaced by the hot spare When replacing a failed drive make sure that the replacement drive has a capacity that is at least as large as the drive being replaced Configuring Arrays and Logical Drives Physical Device Layout Use Table 4 1 Physical Device Layout to record your physical device layout Table 4 1 Physical Device Layout Channel 1 Channel 2 Channel 3 Channel 4 Master Device Type Logical Drive Number Drive Number Manu
25. our controller F NOTE Be sure to use the latest Service Packs updates provided by the operating system manufacturer Also see the readme file that comes with the driver for any updated information Hardware Installation 25 www dell com support dell com 26 See the CERC Operating System Driver Installation Guide for instructions for installing the operating system drivers K NOTE When booting the system from a drive connected to a CERC card and using EMM386 EXE MEGASPI SYS must be loaded in CONFIG SYS before EMM386 EXE is loaded If you do not do this you cannot access the boot drive after EM M386 is loaded The MEGASPI SYS file is provided on the CD that comes with your CERC card ASPI Driver The ASPI driver can be used under DOS The MEGASPLSYS ASPI driver supports hard drives You can use it to run software that requires an ASPI driver Copy MEGASPI SYS to your hard disk drive MEGASPI SYS must be loaded in CONFIG SYS before EMM386 EXE is loaded Add the following line to CONFIG SYS device lt path gt MEGASPI SYS v The MEGASPI SYS parameters are shown in Table 5 2 MEGASPI SYS Parameters Table 5 2 MEGASPI SYS Parameters Parameter Description h INT 13h support is not provided lv Verbose mode All messages display on the screen a Physical drive access mode Permits access to physical drives q Quiet mode All messages except error messages are suppressed Hardware In
26. provided in the CERC User s Guide Read the CERC User s Guide before you read the CERC Configuration Software Guide CERC Operating System Driver Installation Guide This manual provides all the information you will need to install the appropriate operating system software drivers SECTION 2 Features SMART Technology Configuration on Disk Compatibility Hardware Requirements CERC Specifications Configuration Features Hardware Architecture Features Array Performance Features RAID Management Features Fault Tolerance Features Software Utilities Operating System Software Drivers Onboard Speaker RAID Management Utilities www dell com support dell com 8 Features CERC is a half size four channel IDE RAID card built around this proven SCSI Dell PowerEdge RAID Controller PERC technology The CERC RAID card supports all major operating systems This chapter discusses the following Self monitoring analysis and reporting technology SMART Configuration on Disk Hardware architecture Array performance RAID management Fault tolerance e Utility programs Software drivers SMART Technology SMART technology detects predictable drive failures SMART monitors the internal performance of all motors heads and drive electronics Configuration on Disk Configuration on Disk drive roaming saves configuration information both in non volatile random access memory NVRAM on
27. rd provides four ATA100 IDE cables Match pin 1 on the cable to pin 1 on the IDE channel connector Step 7 Start the System Replace the cover and reconnect the AC power cords Turn power on to the computer During boot the CERC BIOS message appears CERC ATA100 4ch RAID Controller BIOS Version x xx date Copyright c LSI Logic Corporation Firmware Initializing Scanning IDE Device etc The firmware takes several seconds to initialize During this time the adapter scans the IDE channels When ready the following appears CERC Adapter 1 Firmware Version x xx DRAM Size 16 MB 0 Logical Drives found on the Host Adapter 0 Logical Drives handled by BIOS Press lt Ctrl gt lt M gt to run CERC BIOS Configuration Utility The lt Ctrl gt lt M gt utility prompt times out after several seconds The RAID host card number firmware version and cache DRAM size are displayed in the second portion of the BIOS message The numbering of the cards follows the PCI slot scanning order used by the system s motherboard Step 8 Run the BIOS Configuration Utility Press lt Ctrl gt lt M gt when prompted during the boot process to run the BIOS Configuration Utility See the CERC Configuration Software Guide for information about running the BIOS Configuration Utility Step 9 Install the Operating System Software Driver Operating system drivers are provided on the Dell OpenManage Server Assistant CD that accompanies y
28. s No reboot necessary after expansion Yes Hardware clustering support on the No board User specified rebuild rate Yes Hardware Architecture Features Table 2 3 Hardware Architecture Features displays the hardware architecture features Table 2 3 Hardware Architecture Features Specification Feature Processor Intel 1960RS 100 IDE controller AMI MG80649 Size of flash ROM 1 MB Amount of NVRAM 32 KB Direct I O Yes Direct I O bandwidth 132 MB s Array Performance Features Table 2 4 Array Performance Features lists the array performance features Table 2 4 Array Performance Features Specification Feature Host data transfer rate 132 MB s Drive data transfer rate 100 MB s Maximum scatter gathers 26 elements Maximum size of I O requests 6 4 MB in 64 KB stripes Stripe sizes 2 KB 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB Maximum of concurrent commands 255 RAID Management Features Table 2 5 RAID Management Features lists the RAID management features Table 2 5 RAID Management Features Specification Feature Support for simple network management protocol Yes SNMP Performance monitor provided Yes Remote control and monitoring Yes Event broadcast and event alert Yes Hardware connector I2C Drive roaming Yes Support for concurrent multiple stripe sizes Yes Features 13 www dell com support dell c
29. stallation Migrating Existing Non RAID Data to a CERC System When you add a CERC card and several IDE hard drives to a server you may want to keep the existing data that is stored on the hard drives connected to the integrated IDE controller In addition you may want to migrate the data to the new CERC RAID system There are two methods for data migration as described in the following procedures NOTICE You should not connect the existing data drives directly to the RAID card without backing up the data first When you set up RAID configuration the existing file system and data on these hard drives may be destroyed You should always back up useful data before connecting the drives to the RAID card Migrating Data with a Data Backup Device Perform the following steps if you have a data backup device such as a tape drive 1 Make a complete backup of the data you want to migrate 2 Disconnect the existing hard drives from the integrated IDE controller Either remove the drives or use them to connect to the RAID card 3 Insert the RAID card in one of the PCI slots 4 Add extra IDE hard drives as needed 5 Connect all of the hard drives to the RAID card using the Ultra ATA100 cables included with the card 6 Start the system 7 Press lt F2 gt during system boot to enter the System Setup program 8 Disable the integrated IDE controller For details on disabling integrated IDE controller in the System Setup program see your
30. support dell com 6 Overview CERC Cost Effective RAID Controller is a half sized PCI adapter card that provides a way to improve the performance and availability of your storage subsystems An entry level to mid range RAID controller solution CERC offers high transfer rates and fault tolerant data redundancy by using low cost Ultra ATA drives in desktops workstations or low end servers You can connect one to four drives in Master mode to the CERC card and can configure these drives using a simple setup menu embedded in the CERC BIOS The CERC card supports the following drive modes PIO 0 4 Multiword DMA 0 2 and Ultra DMA 0 5 In addition it supports RAID levels 0 1 5 and 10 Documentation The technical documentation set includes CERC User s Guide CERC Configuration Software Guide CERC Operating System Driver Installation Guide CERC User s Guide The CERC User s Guide contains information about installing the RAID controller It also contains general introductory information about RAID RAID system planning and configuration information Read the CERC User s Guide before you read the CERC Configuration Software Guide CERC Configuration Software Guide This manual provides information about CERC software utility programs You will not need this manual until after you have planned your RAID system and have installed the RAID controller RAID system planning installation and configuration information is
31. te logical drives You can use non contiguous segments to create logical drives You can still create sequential logical drives without using the non contiguous segments The utilities provide information about sequential segments non contiguous segments and physical drives that have not been configured You can use this information when you create logical drives Configuring Arrays and Logical Drives SECTION 5 Troubleshooting General Problems and Solutions BIOS Boot Error Messages Other BIOS Error Messages DOS ASPI Driver Error Messages Other Potential Problems www dell com support dell com General Problems and Solutions Table 5 1 General Problems describes general problems you might encounter and suggests solutions Table 5 1 General Problems Problem Suggested Solution The system hangs during the boot process after installation Make sure the CERC card is installed in the proper PCI expansion slot Some operating systems do not load in a computer with a RAID adapter Check the system BIOS configuration for PCI interrupt assignments Make sure some interrupts are assigned for PCI Initialize the logical drive before installing the operating system One of the hard drives in the array fails often Check the drive error counts using the BIOS Configuration Utility Select Objects gt Physical Drive After the Physical Drive Selection Menu displays press lt F2 gt
32. tem memory once it is loaded CD drives under At this time copied CDs are not accessible from DOS even DOS after loading MEGASPLSYS and AMICDROM SYS Physical drive errors To display the Media Error and Other Error options select a physical drive under the Objects gt Physical Drive menu and press lt F2 gt A Media Error is an error that occurred while actually transferring data An Other Error is an error that occurs at the hardware level because of a device failure poor cabling bad termination signal loss and so on Virtual sizing The virtual sizing option enables RAID expansion Virtual sizing must be enabled to increase the size of a logical drive or add a physical drive to an existing logical drive Press lt Ctrl gt lt M gt to run the BIOS Configuration Utility to enable virtual sizing Select Objects gt Logical Drive then select View Update Parameters Set Virtual Sizing to Enabled BSD Unix No BSDI Unix driver is provided The RAID controller does not support BSDI Unix Multiple LUNs The RAID controller supports one logical unit number LUN per target ID No multiple LUN devices are supported CERC Power The maximum CERC power requirements are 5 25 7 875 Requirements watts at 5 25 V and 1 1 5 amps Troubleshooting 45 W09 ap 340ddns wos ap MMM Troubleshooting 46 SECTION 6 Appendix A Regulatory LSI Logic Adapters FCC Compliance State
33. the RAID controller and on the hard drives connected to the RAID controller If the RAID controller is replaced the new RAID controller can detect the actual RAID configuration maintaining the integrity of the data on each drive even if the drives have changed channels Compatibility The RAID controller is compatible with the following SNMP managers IDE hard drives All IDE backup and utility software Hardware Requirements The CERC RAID controller can be installed in a system that contains the following Motherboard with 5 V 3 3 V PCI expansion slots Support for PCI version 2 1 or later An Intel Pentium 119 Celeron or more powerful CPU A diskette drive A color monitor AVGA adapter card A mouse A keyboard CERC Specifications Table 2 1 CERC Specifications contains the specifications for the CERC card Table 2 1 CERC Specifications Parameter Specification Card size 6 877 x 4 178 half length PCI Processor Intel i960RS 32 bit RISC processor 100 MHz Bus type PCI 2 2 Bus data transfer rate Up to 132 MB s Features 9 www dell com support dell com Table 2 1 CERC Specifications continued Parameter Specification BIOS AMIBIOS Cache configuration 16 MB ECC through a 66MHz 72 bit unbuffered 3 3V SDRAM soldered to the PCB Firmware 1 MB x 8 flash ROM NVRAM 32 KB x 8 for storing RAID configuration Operatin
34. ting Logical Drives Logical drives are arrays or spanned arrays that are presented to the operating system You must create one or more logical drives The logical drive capacity can include all or any portion of an array The logical drive capacity can also be larger than an array by using spanning The CERC card supports up to 40 logical drives Configuration Strategies The most important factors in RAID array configuration are drive capacity drive availability fault tolerance and drive performance You cannot configure a logical drive that optimizes all three factors but it is casy to select a logical drive configuration that maximizes one factor at the expense of the other two factors Configuring Logical Drives After you have installed the RAID controller in the server and have attached all physical drives perform the following actions to prepare a RAID disk array See the CERC Configuration Software Guide for more information 1 Optimize the RAID controller options for your system 2 Format the IDE drives to include in the array and the drives to use as hot spares 3 Press lt Ctrl gt lt M gt to run the BIOS Configuration Utility The Management Menu displays 4 Select Easy Configuration or New Configuration to define and configure one or more logical drives 5 Create and configure one or more system drives logical drives Configuring Arrays and Logical Drives 6 Select the RAID level cache policy read polic
35. to view the drive errors Format the drive Rebuild the drive If the drive continues to fail replace it with another drive of the same capacity After pressing lt Ctrl gt lt M gt running Megaconf exe and trying to make a new configuration the system hangs when scanning devices Check the drive s master slave settings on each channel to make sure each device is set to Master or cable select CS Replace the drive cable Pressing lt Ctrl gt lt M gt or running megaconf exe does not display the Management Menu These utilities require a color monitor Cannot flash or update the CERC card Call Dell Support for assistance Firmware Initializing appears and remains on the screen Make sure that the RAID controller is properly seated in the PCI slot Troubleshooting BIOS Boot Error Messages Table 5 2 BIOS Boot Error Messages displays the error messages that can display when there is an error during bootup Table 5 2 BIOS Boot Error Messages Message Problem Suggested Solution Adapter BIOS Disabled No Logical Drives Handled by BIOS The CERC BIOS is disabled Sometimes the BIOS is disabled to prevent booting from the BIOS Enable the CERC BIOS using the BIOS Configuration Utility Host Adapter at Baseport xxxx Not Responding The BIOS cannot communicate with the firmware on the RAID card Make sure the RAID card is properly installed
36. y and write policy 7 Save the configuration 8 Initialize the logical drives After you initialize the logical drives you can install the operating system Logical Drive Configuration Use Table 4 2 Logical Drive Configuration to record your logical drive configuration Table 4 2 Logical Drive Configuration Logical Drive Raid Level Stripe Size Logical Drive Size Cache Policy Read Policy Write Policy of Physical Drives LDO LDI LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9 LDI0 LD11 LD12 LD13 LD14 LD15 LD16 LD17 LD18 Configuring Arrays and Logical Drives 35 www dell com support dell com 36 Table 4 2 Logical Drive Configuration continued Logical Drive Raid Level Stripe Logical Cache Read Write of Physical Size Drive Size Policy Policy Policy Drives LD19 LD20 LD21 LD22 LD23 LD24 LD25 LD26 LD27 LD28 LD29 LD30 LD31 LD32 LD33 LD34 LD35 LD36 LD37 LD38 LD39 Optimizing Data Storage Data Access Requirements Each type of data stored in the disk subsystem has a different frequency of read and write activity If you know the data access requirements you can more successfully determine a strategy for opti
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