Cisco UCSC-CABLE-A6= Serial Attached SCSI (SAS) cable
Contents
1. Figure C 1 SCU Upgrade ROM and RAID 5 Key Header Locations on the Motherboard F fT SYS FANI U ia i five FA i Y r j amrai i SYS FAN3 4 B an i SYS FAN4 DIN Y eS maan eje PSU 1 bottom _ T 1 SCU upgrade ROM header SCU_ROM 2 RAID 5 software key header RAID_KEY OL 26647 01 Cisco UCS C24 Server Installation and Service Guide Appendix C RAID Controller Considerations HZ Embedded MegaRAID Controller Installing a Software RAID Key Module for Embedded RAID 5 Support amp The software RAID key module contains a chip on a small circuit board This module attaches to a motherboard header This chip upgrades SAS support to add RAID2. APPENDIX RAID Controller Considerations This appendix contains the following sections e Supported RAID Controllers and Required Cables page C 2 e Mixing Drive Types in RAID Groups page C 3 e SuperCap Power Modules RAID Backup Units page C 3 e Embedded MegaRAID Controller page C 5 e RAID Controller Cabling page C 17 e Restoring RAID Configuration After Replacing a RAID Controller page C 21 e For More Information page C 21 OL 26647 01 Cisco UCS C24 Server Installation and Service Guide Appendix C RAID Controller Considerations HZ Supported RAID Controllers and Required Cables Supported RAID Controllers and Required Cables This server supports the RAID controller options cables and RAID backup units shown in Table C 1 A Caution Do not use the embedded MegaRAID controller and a hardware RAID controller card at the same time This is not supported and could result in data loss S Note This server supports up to two internal PCIe style RAID controllers plus one external PCIe style RAID controller Do not mix internal controller types in the server You can mix internal controllers with an external controller S Note The embedded RAID option is available only with the SFF 16 drive backplane It does not operate through an expander amp Note The cables in this section apply to both single and dual CPU configurations Table C 1 lists the RAID options for the small form f
3. Onboard SCU Storage Caution Data migration from support is Enabled in BIOS SW RAID to HW RAID is not supported and could result in data loss Allowed only before there is data on the drives data migration is not supported 1 Disable SCU storage support in BIOS 2 Install card 3 Install cables HW RAID Not applicable Not allowed Onboard SCU Storage support is Disabled in BIOS Cisco UCS C24 Server Installation and Service Guide Pca g OL 26647 01 AppendixC RAID Controller Considerations Embedded MegaRAID Controller W Embedded MegaRAID Controller amp Note amp VMware ESX ESXi or any other virtualized environments are not supported for use with the embedded MegaRAID controller Hypervisors such as Hyper V Xen or KVM are also not supported for use with the embedded MegaRAID controller Note The embedded RAID option is available only with the SFF 16 drive backplane It does not operate through an expander This server includes an embedded RAID controller with two mini SAS connectors on the motherboard see Figure C 1 e The default setting for this embedded controller is RAID 0 1 and 10 support for up to four SATA drives e You can upgrade this support to SAS RAID 0 1 and 10 support for up to eight SAS drives by installing a Storage Controller Unit SCU upgrade ROM chip on the motherboard See Installing a SCU Upgrade ROM Module For Embedded RAID SAS Suppor
4. PCleriser2 lt o i jo em I drem i Le ES CPU 2 1 e if Porto SYSFAN4 8 gt i l e 2 yil Id le A om oe Mel H le C o n od i 1 BE e PSU 1 bottom ae i N AZ 2 U 1 bo or fp 1 s fin s P iU 2 top d k col v a R U 3 fi l oj le x iol Drive backplane PCIe risers for RAID controller cards Embedded RAID SAS connector SCU_PORT_0O Embedded RAID SAS connector SCU_PORT_1 A N a SAS expander connectors oo o SCPM mounting cage Cisco UCS C24 Server Installation and Service Guide oL 26647 01 E c7 Appendix C RAID Controller Considerations RAID Controller Cabling Cisco UCS C24 Server RAID Cabling Instructions This section contains the following topics e Backplane and Expander Options page C 18 e Small Form Factor 24 Drive Backplane With Expander Cabling page C 18 e Small Form Factor 16 Drive Backplane No Expander Cabling page C 19 e Large Form Factor 12 Drive Backplane With Expander Cabling page C 20 Backplane and Expander Options The server is orderable in three different versions each with one of three different front panel backplane configurations e Cisco UCS C24 small form factor SFF drives with 24 drive backplane and expander Holds up to twenty four 2 5 inch hard drives or solid state drives e Cisco UCS C24 small form factor SFF drives with 16 drive backplane no expander Hol
5. To control 16 drives in this configuration you must add a second controller card to control drives 9 16 Cable 3 controls drives 9 12 and cable 4 controls drives 13 16 Make the following connections to your second controller card Connect mini SAS cable 1 from the card connector SAS1 to the drives 9 12 connectors on the backplane Connect the cable 1 SGPIO connector labeled S1 to its backplane connector Connect mini SAS cable 2 from the motherboard connector SAS2 to the drives 13 16 connectors on the backplane Connect the cable 2 SGPIO connector labeled S2 to its backplane connector Large Form Factor 12 Drive Backplane With Expander Cabling Step 1 Step 2 The cable connections required for each type of controller are as follows LSI MegaRAID SAS 9266CV 8i SAS 9220 8i or SAS 9240 81 PCle Card Cable UCSC CABLE 11 This option can control up to 12 drives The required ucsc caBLE 11 cable kit has two cables Cable 1 controls drives 1 6 and cable 2 controls drives 7 12 Connect mini SAS cable 1 from connector SAS1 on the card to the SAS1 connector on the expander Connect mini SAS cable 2 from connector SAS2 on the card to the SAS2 connector on the expander C24 Server Installation and Service Guide Cisco UCS OL 26647 01 _ Appendix C RAID Controller Considerations Restoring RAID Configuration After Replacing a RAID Controller W Restoring RAID Configuration After Replacing a RA
6. 5 support RAID 0 1 5 and 10 for up to eight drives See Figure C 1 Note Step 1 Step 2 Step 3 Step 4 You must have the RAID SCU upgrade ROM installed and before you can use the RAID 5 key To install a RAID 5 software key module follow these steps Locate the RAID_KEY header see Figure C 1 Align the connector on the RAID key module with the pins on the header then gently push the connector onto the pins Replace the top cover Replace the server in the rack replace cables and then power on the server by pressing the Power button Enabling the Integrated RAID Controller in the BIOS Step 1 Step 2 Step 3 Step 4 Step 5 This controller must be enabled in the server BIOS to use it Boot the server and press F2 when prompted to enter the BIOS Setup utility Select the Advanced tab then South Bridge Set Onboard SATA Controller to Enabled Select the SATA Mode Press F10 to save your changes and exit the utility Disabling the Integrated RAID Controller in the BIOS Step 1 Step 2 Step 3 Step 4 If you change from using this integrated controller to a RAID controller card you must disable the integrated controller in the server BIOS Boot the server and press F2 when prompted to enter the BIOS Setup utility Select the Advanced tab then South Bridge Set Onboard SATA Controller to Disabled Press F10 to save your changes and exit the utility Cisco UCS C24 Server Installation and Serv
7. Ifyou prepared the IMG file on a physical diskette in Step 2 Connect an external USB diskette drive to the target server and then insert the diskette in the A drive and press Enter e If you mapped the IMG file as a virtual floppy in Step 5 Select the location of the virtual floppy Yes appears under the F6 Driver heading Press Enter to select Installation Press OK The following message appears LSI Soft RAID Driver Updates added At the menu select the driver update medium and press the Back button Continue and complete the installation process by following the prompts Cisco UCS C24 Server Installation and Service Guide Pcie E OL 26647 01 AppendixC RAID Controller Considerations RAID Controller Cabling W RAID Controller Cabling This section includes the following topics e Cable Routing page C 17 e Cisco UCS C24 Server RAID Cabling Instructions page C 18 Cable Routing The RAID controller connectors in this server are shown in Figure C 2 The colored lines indicate the recommended cable routing paths from the SAS expander or backplane to the possible controller locations e The red line is the cable path to a controller in PCle riser 1 The cable is routed across the chassis in clips on the air baffle not shown This is the only riser available in single CPU configurations e The blue line is the cable path to a controller in PCle riser 2 e The green line is the cable path to the embedded RAID con
8. diskette Use one of the procedures in Preparing Physical Installation Diskettes For Linux page C 12 Then return to Step 4 of this procedure e To install from a virtual floppy disk Download and save the Cisco UCS C Series drivers ISO as described in Downloading the LSI MegaSR Drivers page C 10 Then continue with the next step Extract the dud img file a Burn the ISO image to a disc b Browse the contents of the drivers folders to the location of the embedded MegaRAID drivers lt OS gt Storage Intel C600 c Copy the dud lt driver version gt img file to a temporary location on your workstation Start the Linux driver installation using one of the following methods e To install from local media Connect an external USB DVD drive to the server and then insert the first RHEL install disc into the drive Then continue with Step 6 e To install from remote ISO Log in to the server s CIMC interface Then continue with the next step Launch a Virtual KVM console window and select the Virtual Media tab a Click Add Image and browse to select your remote RHEL installation ISO file b Click Add Image again and browse to select your dud img file c Select the check boxes in the Mapped column for the media that you just added then wait for mapping to complete Power cycle the server Press F6 when you see the F6 prompt during bootup The Boot Menu window opens On the Boot Manager window select the physical disc or virtu
9. methods OL 26647 01 Cisco UCS C24 Server Installation and Service Guide AppendixC RAID Controller Considerations HZ Embedded MegaRAID Controller Step 5 Step 6 Step7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Step 15 Step 16 e To install from local media Connect an external USB DVD drive to the server and then insert the first RHEL install disc into the drive Skip to Step 6 e To install from remote ISO Log in to the server s CIMC interface and continue with the next step Launch a Virtual KVM console window and select the Virtual Media tab a Click Add Image and browse to select your remote RHEL installation ISO file b Click Add Image again and browse to select your dud img file c Select the check box in the Mapped column for the media that you just added then wait for mapping to complete Power cycle the server Press F6 when you see the F6 prompt during bootup The Boot Menu window opens On the Boot Manager window select the physical disc or virtual DVD and press Enter The SLES installation begins when the image is booted When the first SLES screen appears select Installation on the menu Type one of the following in the Boot Options field e For SLES 11 and SLES 11 SP1 32 and 64 bit type brokenmodules ahci e For SLES 11 SP2 32 and 64 bit type brokenmodules ahci brokenmodules isci Press F6 for the driver and select Yes Do one of the following actions e
10. ID Controller When you replace a RAID controller the RAID configuration that is stored in the controller is lost Use the following procedure to restore your RAID configuration to your new RAID controller Step 1 Replace your RAID controller See Replacing a PCle Card page 3 35 Step2 Ifthis was a full chassis swap replace all drives into the drive bays in the same order that they were installed in the old chassis Step3 Reboot the server and watch for the prompt to press F amp Note For newer RAID controllers you are not prompted to press F Instead the RAID configuration is imported automatically In this case skip to Step 6 Step4 Press F when you see the following on screen prompt Foreign configuration s found on adapter Press any key to continue or C load the configuration utility or F to import foreign configuration s and continue Step5 Press any key other than C to continue when you see the following on screen prompt All of the disks from your previous configuration are gone If this is an unexpected message then please power of your system and check your cables to ensure all disks are present Press any key to continue or C to load the configuration utility Step6 Watch the subsequent screens for confirmation that your RAID configuration was imported correctly e Ifyou seethe following message your configuration was successfully imported The LSI virtual drive is also listed among the storage devi
11. Server 2008R2 operating system The Windows operating system automatically adds the driver to the registry and copies the driver to the appropriate directory Step 1 Create a RAID drive group using the LSI SWRAID Configuration utility before you install this driver for Windows Launch this utility by pressing Ctrl M when LSI SWRAID is shown during BIOS post Step2 Download the Cisco UCS C Series drivers ISO as described in Downloading the LSI MegaSR Drivers page C 10 Step3 Prepare the drivers on a USB thumb drive a Burn the ISO image to a disc b Browse the contents of the drivers folders to the location of the embedded MegaRAID drivers lt OS gt Storage Intel C600 Cisco UCS C24 Server Installation and Service Guide Sco OL 26647 01 _ Appendix C RAID Controller Considerations Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Embedded MegaRAID Controller W c Expand the Zip file which contains the folder with the MegaSR driver files d Copy the expanded folder to a USB thumb drive Start the Windows driver installation using one of the following methods e To install from local media Connect an external USB DVD drive to the server and then insert the first Windows install disc into the drive Skip to Step 6 e To install from remote ISO Log in to the server s CIMC interface and continue with the next step Launch a Virtual KVM console window and select the Virtual Media tab a Cli
12. abling W Connect SAS cable 1 from card connector SAS 0 to the PortO connector on the expander Connect SAS cable 2 from card connector SAS 1 on the card to the Port1 connector on the expander If you are using the 9265CV 8i card you can also install an SCPM for RAID backup Install the SCPM see Replacing a SuperCap Power Module RAID Backup Unit page 3 41 then attach the cable from the card to the SCPM Small Form Factor 16 Drive Backplane No Expander Cabling The SFF 16 drive option does not use a SAS expander so connections from the controller are made directly to the backplane The cable connections required for each type of controller are as follows e Embedded RAID Cable UCSC CABLE A7 page C 19 e LSI MegaRAID SAS 9266CV 8i SAS 9220 81 or SAS 9240 81 PCIe Card Cable UCSC CABLE A7 and A8 page C 19 Embedded RAID Cable UCSC CABLE A7 Step 1 Step 2 Step 3 Step 4 This option can control up to eight drives This option can be used only with the SFF 16HDD version of the server because this controller does not operate through an expander The required UCSC CABLE A7 cable kit has two mini SAS cables Cable 1 controls drives 1 4 and cable 2 controls drives 5 8 Connect mini SAS cable 1 from the motherboard connector SCU_PORT_0 to the drives 1 4 connectors on the backplane Connect the cable 1 SGPIO connector labeled S1 to its backplane connector Connect mini SAS cable 2 from the motherboard connecto
13. actor SFF versions of the server Table C 1 Cisco UCS C24 Small Form Factor RAID Options SuperCap RAID Power Levels Required Cables Controller Style Maximum Drives Module Supported Each PID is a cable pair kit Embedded RAID Onboard SFF 16HDD No 0 1 5 10 SFF 16HDD UCSC CABLE A7 on motherboard 4 SATA default or 8 SAS internal LSI MegaRAID PCIe SFF 24HDD No 0 1 10 SFF 24HDD UCSC CABLE A6 SAS 9220 81 16 internal SFF 16HDD Ist controller UCSC CABLE A7 SFF 16HDD SFF 16HDD 2nd controller UCSC CABLE A8 8 internal LSI MegaRAID PCIe SFF 24HDD No 0 1 5 10 SFF 24HDD UCSC CABLE A6 SAS 9240 81 16 internal 50 SFF 16HDD 1st controller UCSC CABLE A7 SFF 16HDD SFF 16HDD 2nd controller UCSC CABLE A8 8 internal LSI MegaRAID PCIe SFF 24HDD Yes 0 1 5 6 10 SFF 24HDD UCSC CABLE A6 SAS 9265CV 8i 24 internal 50 60 SFF 16HDD 1st controller UCSC CABLE A7 SFF 16HDD SFF 16HDD 2nd controller UCSC CABLE A8 8 internal SO Oe Ge The embedded RAID controller must be enabled in the BIOS Embedded RAID SAS drive control requires an optional SCU ROM upgrade chip to be installed on the motherboard Support for eight SAS drives requires an optional SCU upgrade ROM module on the motherboard Integrated RAID 5 support requires an optional software key The 9220 81 controller can create a RAID array with maximum 16 drives even if it detects more than 16 drives In the 16HDD version two controll
14. al DVD and press Enter The RHEL installation begins when the image is booted Type one of the following commands at the boot prompt e For RHEL 5 x 32 and 64 bit type Linux dd blacklist isci blacklist ahci noprobe lt atadrive number gt e For RHEL 6 x 32 and 64 bit type Linux dd blacklist isci blacklist ahci nodmraid noprobe lt atadrive number gt Cisco UCS C24 Server Installation and Service Guide Pca E OL 26647 01 _ Appendix C RAID Controller Considerations Step 10 Step 11 Step 12 Step 13 Step 14 Step 15 Embedded MegaRAID Controller W amp Note The noprobe values depend on the number of drives For example to install RHEL 5 7 on a RAID 5 configuration with three drives enter Linux dd blacklist isci blacklist ahci noprobe ata1 noprobe ata2 noprobe ata3 Press Enter The prompt asks whether you have a driver disk Use the arrow key to select Yes and then press Enter Select fd0 to indicate that you have a floppy diskette with the driver on it Do one of the following actions e Ifyou prepared the IMG file on a physical diskette in Step 2 Connect an external USB diskette drive to the target server and then insert the diskette in the A drive and press Enter e If you mapped the IMG file as a virtual floppy in Step 5 Select the location of the virtual floppy The installer locates and loads the driver for your device The following message appears Loading megasr driver Follo
15. all SAS or all SATA drives in a RAID group e Use the same capacity for each drive in the RAID group e Never mix HDDs and SSDs in the same RAID group SuperCap Power Modules RAID Backup Units This server supports installation of up to two SuperCap power modules SCPMs The SCPMs mount inside a cage that is next to the cooling fans see Figure C 2 The SCPM is supported only when using the LSI MegaRAID CV controller card This supercap module provides approximately 3 years of backup for the disk write back cache DRAM in the case of sudden power loss by offloading the cache to the NAND flash For SCPM replacement instructions see Replacing a SuperCap Power Module RAID Backup Unit OL 26647 01 page 3 41 Cisco UCS C24 Server Installation and Service Guide Appendix C RAID Controller Considerations HZ RAID Controller Migration RAID Controller Migration This server supports hardware RAID PCIe controller cards and embedded software RAID See Table C 4 for which migrations are allowed and a summary of migration steps Table C 4 RAID Controller Migration Starting RAID Controller Migrate to HW RAID Allowed Migrate to SW RAID Allowed None no drives Allowed Allowed Onboard SCU Storage 1 Install card 1 Install desired upgrade support is Disabled in BIOS 2 Install cables modules to motherboard 2 Enable SCU storage support in BIOS 3 Install cables Embedded SW RAID Not applicable gt
16. are included in the C series driver ISO for your server and OS Download the drivers from Cisco com Step 1 Find the drivers ISO file download for your server online and download it to a temporary location on your workstation a See the following URL http www cisco com cisco software navigator html b Click Unified Computing and Servers in the middle column c Click Cisco UCS C Series Rack Mount Standalone Server Software in the right hand column d Click your model of server in the right hand column e Click Unified Computing System UCS Drivers f Click the release number that you are downloading g Click Download to download the drivers ISO file h Verify the information on the next page then click Proceed With Download i Continue through the subsequent screens to accept the license agreement and then browse to a location where you want to save the drivers ISO file Microsoft Windows Driver Installation This section explains the steps to install the LSI MegaSR driver in a Windows installation For the specific supported OS versions see the Hardware and Software Interoperability Matrix for your server release This section contains the following topics e Windows Server 2008R2 Driver Installation page C 10 e Updating the Windows Driver page C 11 e Linux Driver Installation page C 12 Windows Server 2008R2 Driver Installation Perform the following steps to install the LSI MegaSR device driver in a new Windows
17. ces N Virtual Drive s found on host adapter e Ifyou seethe following message your configuration was not imported This can happen if you do not press F quickly enough when prompted In this case reboot the server and try the import operation again wen you are prompted to press F 0 Virtual Drive s found on host adapter For More Information The LSI utilities have help documentation for more information about using the utilities For basic information about RAID and for using the utilities for the RAID controller cards see the Cisco UCS Servers RAID Guide For more information about using the Embedded MegaRAID software to configure your disk arrays see the LSI Embedded MegaRAID Software User Guide Full LSI documentation is also available e LSI MegaRAID SAS Software User s Guide for LSI MegaRAID OL 26647 01 Cisco UCS C24 Server Installation and Service Guide Appendix C RAID Controller Considerations E For More Information http www cisco com en US docs unified_computing ucs 3rd party lsi mrsas userguide LSI_MR_SAS_SW_UG pdf Cisco UCS C24 Server Installation and Service Guide OL 26647 01
18. ck Add Image and browse to select your remote Windows installation ISO file b Select the check box in the Mapped column for the media that you just added then wait for mapping to complete Power cycle the server Press F6 when you see the F6 prompt during bootup The Boot Menu window opens On the Boot Manager window select the physical disc or virtual DVD and press Enter The Windows installation begins when the image is booted Press Enter when you see the prompt Press any key to boot from CD Observe the Windows installation process and respond to prompts in the wizard as required for your preferences and company standards When Windows prompts you with Where do you want to install Windows install the drivers for embedded MegaRAID a Click Load Driver You are prompted by a Load Driver dialog to select the driver to be installed b Connect the USB thumb drive that you prepared in Step 3 to the target server c On the Windows Load Driver dialog that you opened in Step a click Browse d Use the dialog to browse to the location of the drivers folder on the USB thumb drive and click OK Windows loads the drivers from the folder and when finished the driver is listed under the prompt Select the driver to be installed e Click Next to install the drivers Updating the Windows Driver Step 1 Step 2 Step 3 Step 4 Perform the following steps to update the LSI MegaSR driver for Windows or to install
19. disc b Browse the contents of the drivers folders to the location of the embedded MegaRAID drivers lt OS gt Storage Intel C600 c Expand the Zip file which contains the folder with the driver files Copy the driver update disk image dud driver version img to your Linux system Insert a blank floppy diskette into the floppy drive Confirm that the files are in the selected directory Create the driver update diskette using the following command dd if dud driver version img of dev fd0 After the command prompt returns and the floppy disk drive LED goes out remove the diskette Label the diskette with the image name OL 26647 01 Cisco UCS C24 Server Installation and Service Guide AppendixC RAID Controller Considerations HZ Embedded MegaRAID Controller Installing the Red Hat Linux Driver Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step7 Step 8 Step 9 For the specific supported OS versions see the Hardware and Software Interoperability Matrix for your server release This section describes the fresh installation of the Red Hat Enterprise Linux device driver on systems with the embedded MegaRAID stack Create a RAID drive group using the LSI SWRAID Configuration utility before you install this driver for the OS Launch this utility by pressing Ctrl M when LSI SWRAID is shown during BIOS post Prepare the dud img file using one of the following methods e To install from a physical
20. ds up to sixteen 2 5 inch hard drives or solid state drives e Cisco UCS C240 large form factor LFF drives with 12 drive backplane and expander Holds up to twelve 3 5 inch hard drives amp Note The SAS expander is required for the SFF 24 drive option and the LFF 12 drive option The SFF 16 drive option does not use the SAS expander Small Form Factor 24 Drive Backplane With Expander Cabling The cable connections required for each type of controller are as follows e LSI MegaRAID SAS 9220 8i or 9240 8i PCIe Card Cable UCSC CABLE A6 page C 18 e LSI MegaRAID SAS 9265CV 8i PCIe Card Cable UCSC CABLE A6 page C 18 LSI MegaRAID SAS 9220 8i or 9240 8i PCle Card Cable UCSC CABLE A6 These options can control up to 16 drives The required UCSC CABLE A6 cable kit has two cables Cable 1 controls drives 1 8 and cable 2 controls drives 9 16 Step 1 Connect SAS cable 1 from card connector SAS 0 to the PortO connector on the expander Step2 Connect SAS cable 2 from card connector SAS 1 on the card to the Portl connector on the expander LSI MegaRAID SAS 9265CV 8i PCle Card Cable UCSC CABLE A6 This option can control up to 24 drives The required UCSC CABLE A6 cable kit has two cables Cable 1 controls drives 1 12 and cable 2 controls drives 13 24 Cisco UCS C24 Server Installation and Service Guide Pcs W OL 26647 01 _ Appendix C RAID Controller Considerations Step 1 Step 2 Step 3 RAID Controller C
21. er cards can be installed to control a total of 16 drives The 9240 81 controller can create a RAID array with maximum 16 drives even if it detects more than 16 drives Cisco UCS C24 Server Installation and Service Guide OL 26647 01 _ Appendix C RAID Controller Considerations Mixing Drive Types in RAID Groups W Table C 2 lists the RAID options for the large form factor LFF version of the server Table C 2 Cisco UCS C24 Large Form Factor RAID Options SuperCap Maximum Power RAID Levels Required Cables Controller Style Drives Module Supported Each PID is a cable pair kit LSI MegaRAID SAS PCIe 12 internal No 0 1 10 12 drives 2 mini SAS 9220 8i UCSC CABLE A11 LSI MegaRAID SAS PCIe 12 internal No 0 1 5 10 50 12 drives 2 mini SAS 9240 8i UCSC CABLE A11 LSI MegaRAID SAS PCIe 12 internal SCPM 0 1 5 6 10 50 60 12 drives 2 mini SAS 9265CV 8i UCSC CABLE A11 Mixing Drive Types in RAID Groups Table C 3 lists the technical capabilities for mixing hard disk drive HDD and solid state drive SSD types in a RAID group However see the best practices recommendations that follow for the best performance Table C 3 Drive Type Mixing in RAID Groups Mix of Drive Types in RAID Group Allowed SAS HDD SATA HDD Yes SAS SSD SATA SSD Yes HDD SSD No Best Practices For Mixing Drive Types in RAID Groups For the best performance follow these guidelines e Use either
22. ice Guide Pcs g OL 26647 01 AppendixC RAID Controller Considerations Embedded MegaRAID Controller W Launching the LSI Embedded RAID Configuration Utility Launch the utility by pressing Ctrl M when you see the prompt during system boot For more information about using the Embedded MegaRAID software to configure your disk arrays see the LSI Embedded MegaRAID Software User Guide Installing LSI MegaSR Drivers For Windows and Linux S Note The required drivers for this controller are already installed and ready to use with the LSI SWRAID Configuration Utility However if you will use this controller with Windows or Linux you must download and install additional drivers for those operating systems This section explains how to install the LSI MegaSR drivers for the following supported operating systems e Microsoft Windows Server e Red Hat Enterprise Linux RHEL e SuSE Linux Enterprise Server SLES For the specific supported OS versions see the Hardware and Software Interoperability Matrix for your server release This section contains the following topics e Downloading the LSI MegaSR Drivers page C 10 e Microsoft Windows Driver Installation page C 10 e Linux Driver Installation page C 12 OL 26647 01 Cisco UCS C24 Server Installation and Service Guide Appendix C RAID Controller Considerations HZ Embedded MegaRAID Controller Downloading the LSI MegaSR Drivers The MegaSR drivers
23. ided into multiple VDs of the same RAID level except when using RAID 10 Mixed arrays are not permitted For example you cannot configure a three drive array into RAID 0 and RAID 5 VDs Unlike RAID 0 1 and 5 you cannot create multiple RAID 10 VDs from the same array A single RAID 10 VD uses up the entire array Cisco UCS C24 Server Installation and Service Guide ce E OL 26647 01 _ Appendix C RAID Controller Considerations Embedded MegaRAID Controller W Installing a SCU Upgrade ROM Module For Embedded RAID SAS Support Step 1 Step 2 Step 3 Step 4 Step 5 The SCU Upgrade ROM module contains a chip on a small circuit board This module attaches to a motherboard header see Figure C 1 This chip adds SAS support for up to eight drives To install a SCU upgrade ROM jumper follow these steps Locate the SCU_ROM header see Figure C 1 Align the connector on the SCU upgrade ROM module with the pins on the header then gently push the connector onto the pins Replace the top cover Replace the server in the rack replace cables and then power on the server by pressing the Power button Continue with either Installing a Software RAID Key Module for Embedded RAID 5 Support page C 8 or Enabling the Integrated RAID Controller in the BIOS page C 8
24. nectors on the motherboard Figure C 2 RAID Controller Cable Routing EL aa aT B w 99900 WE Mo PCle riser 1 aS i i aE B Ee E COEL 0 aA SYS FAN2 a cD lt i Port 1 a 2 I e L ES U 1 gt E A k ea E isys FANS WON XXX LOOPSEES Ld ee k __ mo Seen m ee
25. nux and SUSE Linux are for the original GA versions of those distributions The drivers do not support updates to those OS kernels Preparing Physical Installation Diskettes For Linux This section describes how to prepare physical Linux installation diskettes from the driver image files using either the Windows operating system or the Linux operating system amp Note Alternatively you can mount the dud img file as a virtual floppy disk as described in the installation procedures Preparing Physical Installation Diskettes With the Windows Operating System Under Windows you can use the RaWrite floppy image writer utility to create disk images from image files Perform the following steps to build installation diskettes Step 1 Download the Cisco UCS C Series drivers ISO as described in Downloading the LSI MegaSR Drivers page C 10 and save it to your Windows system that has a diskette drive Step 2 Extract the dud img file a Burn the ISO image to a disc b Browse the contents of the drivers folders to the location of the embedded MegaRAID drivers lt OS gt Storage Intel C600 c Expand the Zip file which contains the folder with the driver files Step3 Copy the driver update disk image dud driver version img and your file raw write exe toa directory amp Note RaWrite is not included in the driver package Cisco UCS C24 Server Installation and Service Guide Ca OL 26647 01 _ Appendi
26. r SCU_PORT_1 to the drives 5 8 connectors on the backplane Connect the cable 2 SGPIO connector labeled S2 to its backplane connector LSI MegaRAID SAS 9266CV 8i SAS 9220 8i or SAS 9240 81 PCle Card Cable UCSC CABLE A7 and A8 Step 1 Step 2 Step 3 Step 4 These option can control up to 8 drives with one controller You can control up to 16 drives with two controllers and two cable kits e Use cable pair UCSC CABLE A7 for the first controller e Use cable pair UCSC CABLE A8 for the second controller if used First Controller Drives 1 through 8 Cable UCSC CABLE A7 The required UCSC CABLE A7 cable kit has two mini SAS cables Cable 1 controls drives 1 4 and cable 2 controls drives 5 8 Make the following connections to your first controller card Connect mini SAS cable 1 from the card connector SAS1 to the drives 1 4 connectors on the backplane Connect the cable 1 SGPIO connector labeled S1 to its backplane connector Connect mini SAS cable 2 from the card connector SAS2 to the drives 5 8 connectors on the backplane Connect the cable 2 SGPIO connector labeled S2 to its backplane connector OL 26647 01 Cisco UCS C24 Server Installation and Service Guide Appendix C RAID Controller Considerations HI RAID Controller Cabling Step 1 Step 2 Step 3 Step 4 Second Controller Drives 9 through 16 Cable UCSC CABLE A8 The required UCSC CABLE A8 cable kit has two mini SAS cables
27. t page C 7 e You can upgrade this support by adding SAS RAID 5 support with an optional software key See Installing a Software RAID Key Module for Embedded RAID 5 Support page C 8 Note A You cannot downgrade from using a RAID controller card to using the embedded controller see RAID Controller Migration page C 4 Instructions for installing upgrade modules and enabling the embedded controller in the BIOS are included here for those upgrading a server with no RAID controller or drives Caution Data migration from SW RAID embedded RAID to HW RAID a controller card is not supported and could result in data loss Migrations from SW RAID to HW RAID are supported only before there is data on the drives or the case in which there are no drives in the server see RAID Controller Migration page C 4 e You can migrate from using the embedded controller to using a RAID card only before there is data on the drives In this case you must disable the embedded controller See Disabling the Integrated RAID Controller in the BIOS page C 8 e The required drivers for this controller are already installed and ready to use with the LSI SWRAID Configuration Utility However if you will use this controller with Windows or Linux you must download and install additional drivers for those operating systems See Installing LSI MegaSR Drivers For Windows and Linux page C 9 This section contains the following topics e Notes on Suppor
28. ted Embedded MegaRAID Levels page C 6 e Installing a SCU Upgrade ROM Module For Embedded RAID SAS Support page C 7 e Installing a Software RAID Key Module for Embedded RAID 5 Support page C 8 e Enabling the Integrated RAID Controller in the BIOS page C 8 e Disabling the Integrated RAID Controller in the BIOS page C 8 e Launching the LSI Embedded RAID Configuration Utility page C 9 Cisco UCS C24 Server Installation and Service Guide oL 26647 01 g cs Appendix C RAID Controller Considerations HZ Embedded MegaRAID Controller e Installing LSI MegaSR Drivers For Windows and Linux page C 9 Notes on Supported Embedded MegaRAID Levels The following RAID levels are supported by the embedded MegaRAID controller e RAID 0 You can configure a RAID 0 virtual drive VD using one or more physical drives PDs This level supports up to eight VDs and PDs e RAID 1 A RAID 1 VD is configured from only two PDs This level supports up to eight PDs four RAID arrays and eight VDs e RAID 5 You can configure a RAID 5 VD using three or more PDs This level supports up to eight PDs and eight VDs e RAID 10 This is a spanned VD that is RAID 0 is implemented on two or more RAID 1 VDs This level supports up to eight PDs two to four RAID 1 volumes spanned and one VD Note None of these RAID levels require drives of the same size The smallest drive in the array determines the size of the VD Note An array can be div
29. this driver on an existing system booted from a standard IDE drive Click Start point to Settings and then click Control Panel Double click System click the Hardware tab and then click Device Manager Device Manager starts In Device Manager double click SCSI and RAID Controllers right click the device for which you are installing the driver and then click Properties On the Driver tab click Update Driver to open the Update Device Driver wizard and then follow the wizard instructions to update the driver OL 26647 01 Cisco UCS C24 Server Installation and Service Guide AppendixC RAID Controller Considerations HZ Embedded MegaRAID Controller Linux Driver Installation This section explains the steps to install the embedded MegaRAID device driver in a Red Hat Enterprise Linux installation or a SuSE Linux Enterprise Server installation This section contains the following topics e Obtaining the Driver Image File page C 12 e Preparing Physical Installation Diskettes For Linux page C 12 e Installing the Red Hat Linux Driver page C 14 e Installing the SUSE Linux Enterprise Server Driver page C 15 Obtaining the Driver Image File See Downloading the LSI MegaSR Drivers page C 10 for instructions on obtaining the drivers The Linux driver is offered in the form of dud driver version img which is the boot image for the embedded MegaRAID stack amp Note The LSI MegaSR drivers that Cisco provides for Red Hat Li
30. w the Red Hat Linux installation procedure to complete the installation Reboot the system Installing the SUSE Linux Enterprise Server Driver Step 1 Step 2 Step 3 Step 4 For the specific supported OS versions see the Hardware and Software Interoperability Matrix for your server release This section describes the installation of the SuSE Linux Enterprise Server driver on a system with the embedded MegaRAID stack Us e the following procedure to install the SLES drivers Create a RAID drive group using the LSI SWRAID Configuration utility before you install this driver for the OS Launch this utility by pressing Ctrl M when LSI SWRAID is shown during BIOS post Prepare the dud img file using one of the following methods e To install from a physical diskette Use one of the procedures in Preparing Physical Installation Diskettes For Linux page C 12 Then return to Step 4 of this procedure e To install from a virtual floppy disk Download and save the Cisco UCS C Series drivers ISO as described in Downloading the LSI MegaSR Drivers page C 10 Then continue with the next step Extract the dud img file a Burn the ISO image to a disc b Browse the contents of the drivers folders to the location of the embedded MegaRAID drivers lt OS gt Storage Intel C600 c Copy the dud lt driver version gt img file to a temporary location on your workstation Start the Linux driver installation using one of the following
31. x C RAID Controller Considerations Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Embedded MegaRAID Controller W If necessary use this command to change the file name of the driver update disk to a name with fewer than eight characters copy dud driver version img dud img Open the DOS Command Prompt and navigate to the directory where raw write exe is located Type the following command to create the installation diskette raw write Press Enter You are prompted to enter the name of the boot image file Type the following dud img Press Enter You are prompted for the target diskette Insert a floppy diskette into the floppy drive and type A Press Enter Press Enter again to start copying the file to the diskette After the command prompt returns and the floppy disk drive LED goes out remove the diskette Label the diskette with the image name Preparing Installation Disks With a Linux Operating System Under Red Hat Linux and SuSE Linux you can use a driver diskette utility to create disk images from image files Perform the following steps to create the driver update disk Download the Cisco UCS C Series drivers ISO as described in Downloading the LSI MegaSR Drivers page C 10 and save it to your Linux system that has a diskette drive Extract the dud img file a Burn the ISO image to a
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