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DELL PowerVault MD1200

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1. gt 45 MN POWERVAULT MD1200 amp MD1220 TECHNICAL GUIDEBOOK 1 2 3 4 8 Table of Contents rela 3 1 1 ONS casera P H 3 NOW FOalill CS E EEEREN 3 OVEN CW A Ir 4 3 1 Customer diven CS s susct edes a 4 3 2 Product IPOSIMIOMING M EE Tt 4 3 3 PowerVault MD1200 and MD1220 Product Features 5 Product SUDO ME eR HERPES 6 4 1 gioi RAID Adapter SUB DOM 2 6 4 2 FOSCO GINO GUD DOM o oT 6 4 3 Management Software Support 0 ccccccceececeecesceeecceeeeceeeescecesceseecaeeesceneeceseessecssoeessoeseess 6 44 3 System SUPPO IR races nee C Eoo athena 6 4 5 ne es eters ts tetera eer M MURAL DA ee Se 7 GiaS SIS OVEIVIEW PC 8 5 1 DIMENSIONS and HT 8 5 2 Front View cepi n vali Dicen ERG MR REOR 9 5 3 Back VICW and Calle S Ted E dtes due 12 5 4 Hard Drive Indicator as E D DOT 13 55 Enclosure Management Module c cccccseccceeeceeeeceeeeseeeeeeeseeeeeeeseeeseeeeseeeeseeeseeeeseeeseeeess 14 5 6 INGICALOM E DE 16 GB SOUNN CONNGUrAUONS mmm 16 55 CONNECIING the EncloSUl E ssoi nen
2. 3 5 or 2 5 SAS drives Front Panel Features and Indicators Dell PowerVault MD1200 Available in Q3 2010 9 MD1220 Front View and Features Figure 3 24 2 5 SFF SAS drives Front Panel Features and Indicators Dell PowerVault MD1220 10 Available in Q3 2010 Table 6 01200 and MD1220 Front Panel Feature Description Enclosure Mode Switch The enclosure status LED lights when the enclosure power is on Lights blue during normal operation and when the host server is identifying the enclosure Blinks blue when a host server is identifying the enclosure or when the system identification button is pressed Lights amber when the enclosure is turned on or is reset Blinks amber when the enclosure is in the fault state The split mode LED lights when the enclosure is in a split mode configuration If the LED is not lit it indicates that the enclosure is in a unified mode configuration The system identification button on the front control panel can be used to locate a particular enclosure within a rack When the button is pushed the system status indicators on the control panel and the EMM blinks blue until the button is pushed again PowerVault MD1200 Up to 12 SAS hot swappable drives PowerVault MD1220 Up to 24 2 5 inchSAS hot swappable drives When set in the top position the enclosure is configured in unified mode When set in the bottom position the enclosure is
3. of 31 G for 2 6 ms in the operational orientation Storage Six consecutively executed shock pulses in the positive and negative x y and z axes one pulse on each side of the system of 71 G for up to 2 ms Altitude Operating 16 to 3048 m 50 to 10 000 ft Note For altitudes above 2950 feet the maximum operating temperature is de rated 1 F 550 ft 16 to 10 600 m 50 to 35 000 ft Airborne Contaminant Level G2 or lower as defined by ISA S71 04 1985 7 Rack information 7 1 Overview The chassis dimensions shall adhere to CEA 310 E and Server System Infrastructure SSI specifications Dimensional constraints of the chassis require that the chassis be 2U in height and comply in width to fit a Dell rack Drives are accessible from the front while power supply fan modules backplane and EMMs are accessible from the rear 7 2 Rack Rail Kit Provisions for a rack rail kit are incorporated into the chassis design The chassis front panel and rack kit when fully assembled together and placed in a rack must be in compliance with DELL Rack Design Guidelines Version 1 1 All critical envelope dimensions referenced in this document assume the inclusion of the rack kit and bezel Both VersaRail and RapidRail kits are available Available in Q3 2010 22 8 Additional Information e Non Dell drive lock out In order to ensure the highest quality products and best customer experience the PERC H800 will not allow f
4. configured in split mode Figure 4 MD1200 and MD1220 Front Bezel Feature and Indicators Available in Q3 2010 11 5 3 Back View and Features Figure 5 MD1200 MD1220 Back View and Features Dual EMM s RAA N 29 292029 Table 7 01200 and MD1220 Back Panel Feature Description Power supply cooling fan module P 600 W power supply For more information see Power Indicator codes section Primary enclosure management module EMM 0 The EMM provides A data path between the enclosure and the host server Enclosure management functions for your enclosure Secondary EMM 4 Power switches 2 The power switch controls the power supply output to the enclosure S 1 5 Power supply cooling fan module 600 W power supply Available in Q3 2010 12 5 4 Hard Drive Indicators Figure 6 Hard Drive Indicators includes HDD and SSD 1 hard drive activity indicator green 2 hard drive status indicator green and amber Table8 Drive Indicator Description Blinks green two times per second Drive ready for insertion or removal NOTE The drive status indicator remains off until all hard drives are initialized after system power is turned on Drives are not ready for insertion or removal during this time The Dell PowerEdge MTM RAID controller PERC H800 may take up to a minute to discover and initialize all the hard drives Blinks green amber and off Blinks amber four times per second Blinks
5. functions do not automatically return to the replaced EMM unless an additional failure occurs that triggers another failover event Note When the enclosure is configured with dual EMMs in a redundant path configuration all drives are still accessible even after an EMM failure since the EMMs are joined mode via the PERC H800 redundant path When the enclosure is configured in split mode only half of the drives are accessible in the event of an EMM failure EMM Thermal Shutdown If critical internal temperatures are reached the enclosure shuts down automatically through either a thermal shutdown command issued by the EMM firmware or through a command from OpenManage Server Administrator OMSA Enclosure Alarms An audible alarm is activated if any of the fault conditions listed below occur The alarm sounds continuously if More than one fan has failed or a power supply cooling fan module is not installed One or more temperature sensors are in critical range The alarm sounds every 10 seconds if One power supply has failed One cooling fan has failed One or more temperature sensors are in warning range e EMM has failed NOTE The alarm is disabled by default To enable the alarm change the default setting in OMSA For more information see the OMSA documentation Available in Q3 2010 15 5 6 Power Indicator Codes Figure 8 Power Indicator Codes Table 10 Power Indicator
6. storage array o Optimizing Performance Enhancing Security While Doubling the Throughput The PowerVault MD1220 leverages SAS 2 0 technology which doubles the throughput with a 6Gb s SAS interface and offers performance optimization with automatic load balancing across redundant paths and enhanced security with new self encrypting drive SED support o Improved efficiency The PowerVault MD1220 improves energy efficiency over previous generation with new 80PLUS R Silver Certified power supplies This enhancement augments the efficiencies already gained with 2 5 inch drives and variable speed fans Available in Q3 2010 4 3 3 PowerVault MD1200 and MD1220 Product Features Summary Table 2 PowerVault MD1200 and MD1220 Features and Descriptions 6Gb s SAS SAS 2 0 6Gb s SAS SAS 2 0 Number of Drive bays 12 3 5 24 2 5 Expandability daisy chain 8 enclosures per PERC H800 8 enclosures per PERC H800 4 enclosures per port for a 4 enclosures per port for a total of 96 drives total of 192 drives Redundant Path up to 4 Redundant Path up to 4 enclosures per PERC H800 enclosures per PERC H800 Daisy chain not supported Daisy chain not supported with Split mode with Split mode Unified default or Split mode Unified default or Split mode Hot Plug Fans blowers Yes Dual combined Yes Dual combined fan power supply module fan power supply module Hot Plug Power supplies Yes Dual combined
7. 3 5 inch SATA HDD HDD NEM 2 5 inch SAS 2 5 inch SAS Storage Open T e Open Manage Management m 9 p eel g rev 0 1 5 6 10 0 1 5 6 10 0 1 5 6 10 0 1 5 6 10 RAID Levels 50 60 50 60 50 60 50 60 2 New Features Dual auto Dual auto sensing sensing The PowerVault MD1200 and MD1220 offer the following new features 6Gb s SAS SAS 2 0 o Double the throughput performance o Self Encrypting Drives SED e PERC H800 Host RAID adapter o Increased IOPs performance e Increased Density of the 3 5 MD1200 enclosure 12 drive 2U Available in Q3 2010 3 Increased Capacity Daisy chain up to 8 enclosures behind a PERC H800 Increased Flexibility o Mix 2 5 MD1220 and 3 5 MD1200 enclosures behind a PERC H800 o Mix 2 5 and 3 5 drives in the MD1200 Supports SAS Drives only HDDs at 7 2K 10K and 15K rom and SSD 3 System Overview 3 1 Customer driven product priorities Internal Storage no longer enough Server storage running out server applications are beginning to bog down need to move to an external direct attach storage solution Single Server Applications Storage expansion for a single server where clustering and availability are not concerns Capacity Intensive Application Storage MD1200 Looking for storage to support very a large volume of data great solutions for companies that need a low cost per GB for storage Performanc
8. Description 1 DC Power The LED lights green when the DC output voltage is within the limit If this LED is off it indicates that the DC output voltages are not within the limit BM supply cooling fan The LED lights amber when the DC output voltage is not within M the limit or a fault with the fan is detected If this LED is off it indicates that no fault condition is present AC Power The LED lights green when the AC input voltage is within the limit If this LED is off it indicates either there is no power or the AC input voltage is not within the limit 5 7 Solution Configurations The PowerVault MD1200 and MD1220 enclosures can be cabled in either a unified mode configuration or in a split mode configuration In a unified mode configuration the enclosure is connected to one host for example a server with a controller card The enclosure can be one of up to four enclosures daisy chained to a single port on the controller card in the host server The enclosure can also be connected in a redundant path mode with two connections to single host server Redundant path is recommended since it provides cable redundancy and better performance with automatic 1 0 load balancing See Figure 9 and Figure 10 for cabling diagrams of unified mode configurations Available in Q3 2010 16 In a split mode configuration the enclosure is connected to either two host controllers or two ports on a single host controller The enclosure c
9. Yes Dual combined fan power supply module fan power supply module SAF TE SES Support SES only SES only Enclosure Management Dual Redundant SBB 2 0 Dual Redundant SBB 2 0 configurations compliant compliant Power Supply configurations Redundant Redundant Auto Sensing Auto Sensing Fans blowers Redundant Redundant Chassis Dimensions Height 8 68 cm 3 41 inches Height 8 68 cm 3 41 inches Width 44 63 cm 17 57 inches Width 44 63 cm 17 57 inches Depth 60 20 cm 23 70 inches Depth 54 90 cm 21 61 inches Weight Weight max config 28 39 kg Weight max config 23 31 kg 62 6 Ib 51 4 Ib Weight empty 8 84 kg 19 5 16 Weight empty 8 61 kg 19 Ib Available in Q3 2010 5 4 Product Support 4 1 Host RAID Adapter Support The PowerVault MD1200 and MD1220 require the PERC H800 for Server connectivity The PERC H800 is a PCle 2 0 dual port 2 x4 hardware RAID controller offering 512MB standard battery backed cache and RAID level support for RAID 0 1 5 6 10 50 and 60 The key features of the PERC H800 6Gb s SAS SAS 2 0 Enables daisy chaining up to 8 enclosures 4 per port Enables mixing 2 5 inch and 3 5 inch enclosures in the same daisy chain Enables Redundant Path with Automatic I O load balancing Supports Self Encrypting Drive SED o Requires specific SED drive part numbers For additional details on PERC H800 visit the PERC web page at www dell com PERC 4 2 Host Server Su
10. ake proper actions to throttle the fans in order to maintain optimal operating temperature 6 1 2 Over Temperature Shutdown In order to prevent potential damage to the drives and subsequent loss of data the power supply has the capability to shut itself down or be shut down by the EMM through embedded firmware or host management software such as Dell Open Manage Storage Management in the event of an over temperature condition When the power supply incorporates its internal thermal shutdown feature it will automatically restart when the over temperature condition no longer exists Hysteresis of at least 5 degrees is employed to prevent a frequent toggling on and off of the outputs Available in Q3 2010 21 6 2 Environmental Specifications Table 13 Environmental Specifications Temperature Operating 10 to 35 C 50 to 95 F with a maximum temperature gradation of 10 C per hour Note For altitudes above 2950 feet the maximum operating temperature is de rated 1 F 550 ft Storage 40 to 65 C 40 to 149 F with a maximum temperature gradation of 20 C per hour Relative Humidity Operating 2096 to 8096 non condensing with a maximum humidity gradation of 1096 per hour Storage 5 to 95 non condensing with a maximum humidity gradation of 10 per hour Maximum Vibration 0 25 G at 3 200 Hz for 15 min Maximum Shock Operating One shock pulse in the positive Z axis one pulse on each side of the system
11. an be connected to two different host servers in a split mode configuration Each server sees the enclosure as an independent device with half of the total enclosure slot capacity Table 10 lists the drives that are controlled by each enclosure management module EMM in a split mode configuration See Figure 11 for a cabling diagram of a split mode configuration The operating mode is selected using the enclosure mode switch on the front panel of the enclosure NOTE The enclosure mode switch must be set to either unified mode or split mode before the enclosure is turned on Changing the configuration mode after turning on the enclosure has no effect on the enclosure configuration until the enclosure is rebooted NOTE Clustering is not supported on PowerVault MD1200 and PowerVault M1220 enclosures Figure 9 EMM Cabling Diagram in Unified Mode Single Path host controller Available in Q3 2010 17 seem ILI poo T bn L ETN x uu uq Uu XS es n Ini 1 host controller EMM Cabling Diagram in Unified Mode Redundant Path RECOMMENDED Figure 10 SENSUS 3 T V Sx d See l ue xu MN ELLI ay NI T S LE S 2n baa NS b eves 2 ee agi NUS EIE Li suet 1 eee Sa LE i DID AAA Yay LIT Dd Ay IT gud IL e EMM Cabling Diagram in Split Mode 2 Server configuration Figure 11 hos
12. e EMM blank you will need to remove EMMO to access a release latch see Figure 14 for blank This ensures the customer shuts down the enclosure before making any configuration changes that could but data at risk Figure 14 Latch Available in Q3 2010 23
13. e Intensive Application Storage MD1220 Looking for storage to support very high performance transaction intensive applications like e mail database OLTP online transition processing and data warehousing Space and Power Conservation MD1220 Have space or power constraints and looking for high efficiency per U of rack space 3 2 Product Positioning Dell PowerVault MD1200 direct attached storage array offers versatility and high capacity storage for mainstream applications with optimal performance in sequential streaming applications o Easy to expand your server capacity The PowerVault MD1200 is engineered to seamlessly expand the capacity of PowerEdge servers This expansion array can support 12 3 5 or 2 5 inch SAS HDDs 5508 drives 20 array and expands up to 8 arrays behind a single PERC H800 Host RAID adapter o Versatility and flexibility to meet most business needs The PowerVault MD1200 is Dell s most versatile direct attach storage array With the ability to mix 2 5 inch and 3 5 inch enclosures behind a single PERC H800 Host RAID adapter combined with support for 2 5 inch drives PowerVault MD1200 delivers capacity and performance to support most customer deployments Dell PowerVault MD1220 the energy efficient small form factor SFF 2 5 inch drive expansion enclosure provides the performance required for the most demanding applications in a simple energy efficient direct attached
14. enclosure is not connected 7 EMM Status LED Lights green when the EMM is functioning properly Lights amber when the enclosure does not boot or is not properly configured Blinks green On 250 ms Off 250 ms when a firmware download is in progress Blinks green On 1000 ms Off 1000 ms when a peer auto Available in Q3 2010 14 update is in progress Blinks amber On 250 ms Off 250 ms two times Off 1000 ms when the enclosure is unable to communicate with enclosure devices Blinks amber 250 ms Off 250 ms four times Off 1000 ms when a firmware update fails Blinks amber On 250 ms Off 250 ms five times Off 1000 ms when the firmware versions are different between two EMMs in an enclosure indicates that the LED blinks fast indicates that the LED blinks slowly Enclosure Failover When Two EMMs are Installed lf two EMMs are installed a certain degree of failover is offered Control and monitoring of the enclosure elements can be transferred from one EMM to another in the event of an EMM failure A failover occurs whenever communication is lost between an EMM and its peer In the event of a peer EMM failure the surviving EMM activates the amber status LED of the failed EMM The surviving EMM then takes over the responsibility of enclosure management which includes monitoring and control of the audible alarm enclosure LEDs power supplies and fans When a failed EMM is replaced enclosure management
15. green slowly Steady green Blinks green three seconds amber Rebuild aborted three seconds and off six seconds Available in Q3 2010 13 5 5 Enclosure Management Module Each EMM provides the following data path and enclosure management functions for the enclosure Monitoring and controlling enclosure environment elements such as temperature fan power supplies and enclosure LEDs Controlling access to hard drives Communicating enclosure attributes and states to the host server Figure 7 Enclosure Management Module Table 9 EMM Indicator Description 1 oystem Status Indicator Blinks blue when the system identification button is pushed You can identify a particular enclosure in a rack using the system identification indicator 2 For engineering use only expansion enclosure unified mode only 4 In port link status Lights green when all the links to the port are connected Lights amber when more links the port not connected The LED remains off if enclosure is not connected 5 SAS Port Out Provides SAS connections for cabling to the next down chain expansion enclosure in a daisy chain unified mode only NOTE The SAS port Out is disabled if the enclosure is running in a split mode configuration Out port link status Lights green when all the links out of the port are connected Lights amber when one or more links out of the port are not connected The LED remains off if
16. ives MD1200 allows for both 3 5 inch and 2 5 inch form factor drives and MD1220 allows for 2 5 inch form factor drives Refer to Table 4 for Drive Support details Table 4 Drive Support Form Factor Speed rpm Capacity GB 2 5 SAS 10 000 146 GB 300 GB HDDs up to 6Gb s hd SSDs up to 3Gb s 500 GB 1000 GB 1 TB 2000 GB 2 TB 3 5 SAS HDDs up to 6Gb s interface drives are not supported with the Dell PowerVault MD1200 and MD1220 enclosures 6Gb s SAS interface HDDs and 3Gb s SAS interface SSDs are configured in the MD1200 and MD1220 from Dell s factory and 3Gb s SAS interface HDDs are supported in the field with the supported MD1200 or MD1220 carrier The front bezel of the system contains a lock A locked bezel secures the system hard drives Available in Q3 2010 7 5 Chassis Overview 5 1 Dimensions and Weight The PowerVault MD1200 and MD1220 enclosures use a rack mount 2U chassis Dimensions and Weight Table 5 Detailed Dimensions mm Za with with bezel bezel PV MD1200 PV MD1220 Figure 1 MD1200 and MD1220 Dimensions TOP VIEW Bezel or Outer Most Feature hi EIA Rack Flange Y SIDE VIEW PowerVault MD1200 Weight maximum configuration 28 39 kg 62 6 Ib PowerVault MD1220 Weight maximum configuration 23 31 kg 51 4 Ib Available in Q3 2010 8 5 2 Front View and Features Figure 2 MD1200 Front View and Features 12
17. moving enclosure components refer to the PowerVault MD1200 and MD1220 Hardware Owner s manual and Getting Started Guide at support dell com under manuals 6 Environmental 6 1 Power Supply Specifications The PowerVault MD1200 and MD1220 power supply is rated at 600 W It operates on input voltages ranging from 100 240 V auto switching to the sensed line level e EMC classification is Light Industry e FCC classification is Class Available in Q3 2010 20 Table 12 Power Supply Specifications AC Characteristics Input Voltage Range 90 264 VAC Input Frequency 47 63 Hz Peak Inrush Current 55 A for 10ms or less 25 A for 10 150ms Power Factor over full AC input range 0 9 output load gt 90 Minimum Efficiency measured 20 50 Must Meet Climate Savers requirements and 80 output load over full range of AC input and environmental conditions Load Condition Efficiency 2096 87 50 90 100 87 Peak Output Power 600 Watts 6 1 1 Thermal management The cooling system for the enclosure is designed to allow all components power supplies EMMs HDDs SSDs etc to meet their full operating specifications There may be up to four fans in each power supply fan module This configuration provides N 1 fan redundancy meaning that the enclosure can be sufficiently cooled for normal operation even if one fan fails Firmware shall continuously monitor the temperature sensors within the enclosure and t
18. na aaa Mead aat elvai 19 5 9 Field Replaceable UNNS 0 mL UD TE 20 ueste E E m m 20 6 1 Power SUDON usato tc i us ite dura Telus nd du Ronde abd dens 20 6 1 1 Thermatroaragetnsrib 21 6 1 2 OVE 21 6 2 Environmental SDecl ICatloriSs idu dtes 22 RACK MTOR IANO RM ETT LEMMA 22 7 1 SUIT 22 1 2 RACK RANK tetiatead m UE 22 INT ONMATION TU 23 Available in Q3 2010 2 1 Product Comparison 1 1 Overview Evolution of Dell PowerVault DAS portfolio with the introduction of 6Gb s SAS SAS 2 0 in our JBOD arrays These arrays will connect to Dell PowerEdge 11G servers using the Dell PowerEdge RAID PERC H800 Host RAID Adapter The MD1200 is follow on to the MD1000 and the MD1220 is follow on to the MD1 120 Table 1 shows a comparison between these versions Table 1 Comparison of MD1220 and MD1200 to previous MD1120 and MD1000 Feature Spec MD1000 MD112 MD1220 E MD1200 Dou Slots Interface 6Gb SAS 2 0 een 6Gb SAS 2 0 Host RAID PERC 6 E PERC H PER E PERC H EMM Dual Dual Dual Dual Power Supply Fan Module 3 5 inch SAS 3 5 inch SAS 2 5 inch SAS 2 5 inch SAS HDD HDD HDD Support HDD HDD 2 5 inch SAS
19. or non Dell SAS HDDs SSDs to be initialized or configured in a Dell PowerVault MD1200 or MD1220 e Backward Compatibility MD1200 The PowerVault MD1200 does not provide backward compatible support for connecting to previous generation adapters PERC 5 E or PERC 6 E or daisy chaining with previous generation enclosures MD1000 MD1120 MD3000 MD3000i MD1200 does support a drive carrier that is common with the Dell 11 Generation PowerEdge servers previous generation PowerVault MD1000 carrier is not compatible with the MD1200 e Backward Compatibility MD1220 The PowerVault MD1220 does not provide backward compatible support for connecting to previous generation adapters PERC 5 or PERC 6 E or daisy chaining with previous generation enclosures MD1000 MD1120 MD3000 MD3000i The MD1220 supports a drive carrier that is common with the Dell 11 Generation PowerEdge servers and the previous generation PowerVault MD1120 e Enclosure Migration and Drive Format The PowerVault MD1200 and MD1220 will not be supported behind Dell s 3Gb s PowerVault External RAID enclosures MD3000 and MD3000i e Audible alarm The PowerVault MD1200 and MD1220 support an audible alarm within the enclosure must be enabled via OMSS PERC H800 EMM blank An EMM blank must be installed in EMM1 position if a second EMM is not installed This is required for proper airflow In order to remove th
20. pport The PERC H800 is supported with Dell 11 Generation PowerEdge Servers Refer to Table 3 for PowerEdge Servers that support the PERC H800 For the latest PERC H800 support matrix visit the PERC web page at www dell com PERC Table 3 PowerEdge Servers that support PERC H800 at initial product launch Rack Servers Tower Servers PE R210 PE T310 PE R410 PE 1410 PE R510 PE T610 PE R610 T710 PE R710 4 3 Management Software Support The Dell PowerVault MD1200 and MD1220 enclosures are managed via the management software provided for the PERC H800 The Dell PERC H800 is supported with Dell 11 Generation PowerEdge Servers and managed via OpenManage Storage Management minimum version 6 2 4 4 Operating System Support The Dell PowerVault MD1200 and MD1220 enclosures via PERC H800 support all major enterprise server operating systems consistent with the Dell 11G PowerEdge servers and Dell OpenManage Storage Management minimum version 6 2 software This includes Microsoft Windows Server 2003 and 2008 Red Hat Linux 4 and 5 and SUSE Linux 10 and 11 For more specific details on supported operating systems refer to the PERC web page www dell com PERC or OpenManage 6 2 support matrix Available in Q3 2010 6 4 5 Drive Support Dell PowerVault MD1200 and MD1220 enclosures support SAS hot pluggable HDDs hard disk drives and 5508 solid state dr
21. t controller host controller le Server configuration Sing host controller host controller 18 Available in Q3 2010 Table 11 Split Mode Configuration Dell PowerVault MD1200 Drives 6 to 11 Drives 0 to 5 Dell PowerVault MD1220 Drives 12 to 23 Drives 0 to 11 5 8 Connecting the Enclosure Dell PowerVault MD1200 and MD1200 enclosures standardize on the 6Gb s SAS 2 0 Mini SAS cable SFF 8088 The Mini SAS cable is unique from the SAS cable used with the previous generation Dell PowerVault MD1000 and MD1120 enclosures See transition comparison in Figure 12 Figure 12 Mini SAS Cable Transition SAS to SAS Mini SAS to Mini SAS 3Gb Cable 6Gb Cable MD1000 MD1120 MD1200 MD1220 e Connectors on both ends of the SAS cable are universally keyed Either end of the cable can be connected to the EMM or the RAID controller To remove the SAS cable pull the pull tab to release the cable from the connector on the EMM and the host system See Figure 13 Available in Q3 2010 19 Figure 13 Connecting a Mini SAS Cable 1 SAS cable 7 pull tab 5 9 Field Replaceable Units FRU Hot swap HDD and SSD Power Supply Units power supply cooling fan modules Enclosure Management Modules EMMs Control Panel and Backplane are the primary field replaceable units on the Dell PowerVault MD1200 and MD1220 NOTE For additional detailed instructions on installing and re

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