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Open-E DSS V6 MPIO with XenServer 5.6

Open-E DSS V6 MPIO with XenServer 5.6. Software Version: DSS ver. 6.00 up55 Presentation updated: December 2010. Multipath I/O on DSS V6 with XenServer. Example configuration of Multipath I/O on DSS V6 with Citrix XenServer and VM- Windows 2008. Hardware Requirements:

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Open-E DSS V6 MPIO with XenServer 5.6

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  1. Open-E DSS V6 MPIO with XenServer 5.6 Software Version: DSS ver. 6.00 up55 Presentation updated: December 2010

  2. Multipath I/O on DSS V6 with XenServer Exampleconfigurationof Multipath I/O on DSS V6 withCitrix XenServer and VM-Windows 2008 Hardware Requirements: To run the Multipath I/O on DSS V6 with Citrix XenServer and Windows 2008 server running as virtual machine, a minimum of twonetwork cards in bothsystems are required. LAN Citrix XenServer with Windows 2008 Server as virtual machine. Virtual-IP: 192.168.0.70 DSS V6 ; iSCSI Targets: iqn.2010-12:dss230.xen iqn.2010-11:dss230.win2008 Switch IP:192.168.0.230eth0 (used for the MPIO) IP:192.168.0.7 (MPIO) IP:192.168.1.230eth1 (used for the MPIO) IP:192.168.1.7 (MPIO)

  3. ConfiguretheDSS V6 In order to verify proper NICs settings, go to menu: „STATUS” tab, „network” and Interfaces. Two NICs to be used for MPIO has IP address: 192.168.2.220 192.168.3.220

  4. ConfiguretheDSS V6 Next, please go to menu: „CONFIGURATION” tab, „volume manager” and Vol. groups. Selecteth0interface and in Volume manager, create two Block-IO or File-IO iSCSI volumes.

  5. ConfiguretheDSS V6 Inmenu: „CONFIGURATION” tab, „iSCSI target manager”, Targets, please uncheck the Target Default Name and enter target name: iqn.2010-12:dss.xen Then the second one: iqn.2010-12:dss.win2008

  6. ConfiguretheDSS V6 In menu „CONFIGURATION” tab, „iSCSI target manager”, Targets, select first alias: target0 and click on the button. Then select the second alias: target1 and click on the button. Now, configuring DSS V6 is finished.

  7. Configure XenServer Navigate in the XenCenter and click on „Add New Server”. Step 1

  8. Configure MPIO on XenServer Enter Maintenance Mode Step 2

  9. Configure MPIO on XenServer In the Maintenance Mode in General tab please click on the „Properties” button. Step 3

  10. Configure MPIO on XenServer In the Multipathingsection click onthe „Enable multipathing on this server” and the „OK”to Step 4

  11. Configure MPIO on XenServer Exit Maintenance Mode Step 5

  12. Configure MPIO on XenServer Navigate to the Network tab and click on „Configure …” button. Step 6

  13. Configure MPIO on XenServer Step 7 In „Management Interfaces” menu, please click on „New Interface” button.

  14. Configure MPIO on XenServer Step 8 Next, please enter IP address and Subnet mask and click on the „OK” button.

  15. Configure MPIO on XenServer Step 9 In the „Management Interfaces”section there are two interfaces configured. In this example: 192.168.0.7 192.168.1.7

  16. Configure MPIO on XenServer Next, in the „Storage” tab click on „New SR ...” button. Step 10

  17. Configure MPIO on XenServer Now, select the „Software iSCSI ” and click on the „Next >” button. Step 11

  18. Configure MPIO on XenServer In the Target Hosts field please enter IP addresses of both iSCSI targets and click on the „Discover IQNs” button. Step 12

  19. Configure MPIO on XenServer Now, please select the target showing on the first NIC iqn.2010-12:dss.xen (192.168.0.230). Step 13

  20. Configure MPIO on XenServer Next, please click „Discover LUNs”button and select the LUN. Step 14

  21. Configure MPIO on XenServer In the „Storage” tab, new “iSCSI virtual disk storage” appear. Step 15

  22. Configure MPIO on XenServer In order to check Multipath settings, please select the “iSCSI virtual disk storage” and in the “General” tab Multipathing section must show “2 of 2 paths active”. Step 16

  23. Using XenServer CLI [root@xenserver-demo /]# nano /etc/multipath.conf ... defaults { # udev_dir /dev # polling_interval 10 selector "round-robin 0" path_grouping_policy multibus # getuid_callout "/sbin/scsi_id -g -u -s /block/%n" # prio_callout /bin/true # path_checker readsector0 rr_min_io 6 # max_fds 8192 # rr_weight priorities # failback immediate # no_path_retry fail # user_friendly_names yes } In the green lines please remove the leading # and enter In order to save and exit use ctrl-x -> y -> enter to confirm [root@xenserver-demo /]# multipath –v5 [root@xenserver-demo /]# multipath –ll

  24. Using XenServer CLI – edit /etc/multipath.conf

  25. Using XenServer CLI In order to check the settings, please run the list command: Miltipath -ll Now, the minio parameter is changed to 6 and pgpolicy = multibus

  26. Configure MPIO on XenServer Now install the Windows 2008 virtual machine on the new added iSCSI Virtual disk storage and run Iometer in order to check the performance.

  27. Multipath I/O on DSS V6 with XenServer Step 17 Verify the performance with „Iometer” running on Now you have completed the configuration of Multipath I/O on DSS V6 with XenServer.

  28. Thank you! Follow Open-E:

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