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21 replies Latest Post - ‏2012-11-28T12:04:55Z by SystemAdmin
SystemAdmin
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Pinned topic Unable to attach DS3524 LUN to more than 2 ESXi hosts

‏2011-11-03T08:37:31Z |
BladeCenter HS22, ESXi, 5.0.0, 469512 and DS3524.
I have a bladcenter H that has four blades on there. Currently, I'm using a DS3524, which has two controllers that are directly attached to the SAS I/O modules #3 & #4. I'm able to attach the LUN0 to the first and second blades. However, I'm unable to attach it to the third and fourth ESXi hosts.
I used IBM DS Storage manager to create the logical volume, and then map to a host group, which has all four ESXi blades with their port identifiers.
Any suggestions?
Updated on 2012-11-28T12:04:55Z at 2012-11-28T12:04:55Z by SystemAdmin
  • SystemAdmin
    SystemAdmin
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    Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

    ‏2011-11-03T17:33:26Z  in response to SystemAdmin
    I meant DS5324.
  • Novikov_Alexander
    Novikov_Alexander
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    Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

    ‏2011-11-03T19:58:01Z  in response to SystemAdmin
    Dear will sani,

    DS3000 and DS5000 are not supported for ESXi5, yet (DS4000 not supported, too).

    System Storage Interoperation Center (SSIC)
    http://www-03.ibm.com/systems/support/storage/ssic/interoperability.wss

    Regards,
    Alexander Novikov
    Russia, Moscow
    • pavel.alexei
      pavel.alexei
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      Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

      ‏2011-11-04T07:22:58Z  in response to Novikov_Alexander
      it is not quite so
      http://www-03.ibm.com/systems/support/storage/ssic/midrange-entry/EMD_SSIC_Addendum_07.60.xls
      http://www-03.ibm.com/systems/support/storage/ssic/midrange-entry/EMD_SSIC_Addendum_07.70.38.xls
      http://www-03.ibm.com/systems/support/storage/ssic/midrange-entry/EMD_SSIC_Addendum_07.75.xls
      http://www-03.ibm.com/systems/support/storage/ssic/midrange-entry/EMD_SSIC_Addendum_07.77.xls

      to:"will sani gregorian"
      I didn't understand what does it means: "I'm unable to attach it to the third and fourth ESXi hosts".
      • Novikov_Alexander
        Novikov_Alexander
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        Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

        ‏2011-11-04T11:55:08Z  in response to pavel.alexei
        Hi Pavel,

        thanks for information. But in your files there is a note:

        "SSIC is the master source for storage system interoperability. In the event of conflicting data between SSIC and this file, SSIC takes precedence."

        As you can see in SSIC ESXi5 is not supported.

        Regards,
        Alexander Novikov
        Russia, Moscow
      • SystemAdmin
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        Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

        ‏2011-11-05T19:41:55Z  in response to pavel.alexei
        @pavel.alexei

        I have four blades. I'm able to attach the SAS direct storage to blades one and two but, not three and four.

        @Novikov_Alexander

        That's discouraging but what isn't supported? I'm able to attach the direct storage to at least two of the blades but not the other three. I'm also trying to avoid the ISCSI2 2TB limitations with ESXi 4.1. Simply put, I want to attach the 5.7TB LUN as a whole without having to play around with the extents or having to use LVM (in guest) to create large partitions.
        • SystemAdmin
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          Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

          ‏2011-11-05T23:28:45Z  in response to SystemAdmin
          I really have to slow down and read my own reply. I meant to say SCSI2 limitation, and I'm able to attach the storage to blades #1 and #2, not #3 and #4.
          • Novikov_Alexander
            Novikov_Alexander
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            Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

            ‏2011-11-06T12:56:33Z  in response to SystemAdmin
            Hi will sani,

            DS3000 and DS5000 are not supported for ESXi5, yet.

            System Storage Interoperation Center (SSIC)
            http://www-03.ibm.com/systems/support/storage/ssic/interoperability.wss

            Use only supported OS versions, for example ESX 4.1 or ESXi 4.1.

            Regards,
            Alexander Novikov
            Russia, Moscow
            • tbastia
              tbastia
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              Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

              ‏2011-11-06T13:26:09Z  in response to Novikov_Alexander
              Can you confirm the blade center is zoned that all 4 blades have access to the external ports. If you shutdown a blade that has access does that allow another blade to have access.
              • SystemAdmin
                SystemAdmin
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                Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                ‏2011-11-06T18:30:56Z  in response to tbastia
                tbastia,

                SAS zone seems to be okay. All zones are configured properly:

                I/O Bay 3 - Predefined Config 01
                I/O Bay 4 - Predefined Config 01

                I/O Bay 3 - Chassis: BCE, BCH, BCT and BCHT. SAS modules: 1 or 2. Zoned Blade Bays: 1-14. Each SAS module port belongs to its own zone. All Blades can access all external ports. Cannot be modified.
                I/O Bay 4 - Chassis: BCE, BCH, BCT and BCHT. SAS modules: 1 or 2. Zoned Blade Bays: 1-14. Each SAS module port belongs to its own zone. All Blades can access all external ports. Cannot be modified.

                External ports enabled. The only difference that I can see is that VMware tested with DS3500 firmware version 07.75.28.60 where as I have 07.77.19.00 installed. If I turn off a blade, and then try to rescall the storage on the 3rd or 4th blades, it still does not present the DS3524.
            • SystemAdmin
              SystemAdmin
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              Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

              ‏2011-11-06T18:23:12Z  in response to Novikov_Alexander
              Alexander,

              Thanks for responding twice. I've already made my case on why I need to use VMFS-5. You've made your case on why I shouldn't use ESXi 5. I don't see how its productive to post the same response about the hardware/software interop (lack of) twice.

              VMware ESXi 5 supports DS3500: http://www.vmware.com/resources/compatibility/search.php?deviceCategory=san so, your pedantic rebuttal is pointless. Obviously, VMware recognizes the hardware. If you like to prove me wrong, you can contribute to my question by helping me identify the source of the problem. Perhaps, I'll find out why IBM doesn't support ESXi 5 that way.

              Thank you.
              • Novikov_Alexander
                Novikov_Alexander
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                Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                ‏2011-11-07T07:04:36Z  in response to SystemAdmin
                Hi will sani,

                unfortunately VMware also not supported DS3500 for ESXi5. You can see it on your own link, there is VMware disclaimer for Firmware Version for SAS Switched - Refer to vendors Interoperability Matrix and as you already know IBM is not supports ESXi5 yet.

                > ...helping me identify the source of the problem.

                the source of the problem is your non-supported configuration. Just use any supported configuration.

                Regards,
                Alexander Novikov
                Russia, Moscow
                • SystemAdmin
                  SystemAdmin
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                  Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                  ‏2011-11-07T07:44:00Z  in response to Novikov_Alexander
                  Thank you,

                  Nearly three months later, and IBM doesn't support ESXi 5. That is disappointing to say the least. I suppose wanting to live in beyond the 2TB limit is too bleeding edge...
                  • pavel.alexei
                    pavel.alexei
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                    Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                    ‏2011-11-07T08:29:09Z  in response to SystemAdmin
                    In reality IBM supports ESXi 5.0 on DS3500. SSIC became very hard to harvest. If you will select Product Family: IBM Entry Storage Disk-> Product Model: DS3500-> Product version: 07.77, then you'll see under Operating System: Vmware vSphere/ESX 5.0. Under Server models you'll see "ALL x86&x86_64 Compatible Servers".
                    I didn't have experience with SAS module, i can only try to guess problems source.
                    1. Sorry, but I really didn't understood your sentence "I'm unable to attach it (LUN0) to the third and fourth ESXi hosts". Does it means, that you mapped volume to group bl01p-esxi-grp, but only 1 and 2 blade "see" that volume? Or something else?
                    2. Did you try to swap blade 1 with blade 3 (or 2 with 4)? issue is related to blade or chassis slot/SAS connectivity port?
                    3. Can you post here storage profile configuration? May be SAS connectivity module has something like a configuration file?
                    4. Did you upgraded to the latest version SAS connectivity modules and SAS CIOv modules?
                    5. ESXi 4 don't have 2TB limitation for datastore. You may create several 2TB volumes on storage, expose them to ESX. On the fist create datastore, and then expand it using the rest of volumes.
                    Until Update1 for ESXi 5 i wouldn't put it into production. But if you don't plan to launch this configuration just now into production, may be ESXi 5U1 will be released by that :-) VMFS 3 can be upgraded to VMFS 5 instant, but as far i remember you'll lose some features.
                    • Novikov_Alexander
                      Novikov_Alexander
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                      Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                      ‏2011-11-07T17:24:24Z  in response to pavel.alexei
                      Hi Pavel,

                      In reality IBM is not supports ESXi 5.0 on DS3500 for blade servers.
                      SSIC became very hard to harvest. If you will select Product Family: IBM Entry Storage Disk-> Product Model: DS3500-> Product version: 07.77 -> IBM BladeCenter, then you'll see under Operating System: Vmware vSphere/ESX 4.1 U1 maximum.

                      Regards,
                      Alexander Novikov
                      Russia, Moscow
                    • SystemAdmin
                      SystemAdmin
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                      Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                      ‏2011-11-08T00:23:43Z  in response to pavel.alexei
                      I'm going to skip to number five. This is only if you create the VMFS with 8MB blocks, correct? Last time I attempted to attach a 2TB LUN it failed. Then again, the VMFS was created with 1MB blocks. If this is the case, then I may not need esxi 5, which makes this discussion a moot point.
                      • Novikov_Alexander
                        Novikov_Alexander
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                        Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                        ‏2011-11-08T04:18:49Z  in response to SystemAdmin
                        Hi will sani,

                        > This is only if you create the VMFS with 8MB blocks, correct?

                        no, you can use any block size.

                        > Last time I attempted to attach a 2TB LUN it failed.

                        could you provide screenshote. Pay attention that LUN must be 2TB-512B, otherwise you will have the problem.

                        Regards,
                        Alexander Novikov
                        Russia, Moscow
                        • kopper
                          kopper
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                          Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                          ‏2011-11-08T21:18:50Z  in response to Novikov_Alexander
                          why people say DS35xx is not supported

                          what about this?

                          http://www.vmware.com/resources/compatibility/search.php?deviceCategory=san&productid=18507&deviceCategory=san&partner=43&releases=76&keyword=ds3500&isSVA=1&page=1&display_interval=10&sortColumn=Partner&sortOrder=Asc
                          • SystemAdmin
                            SystemAdmin
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                            Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                            ‏2012-02-12T00:43:29Z  in response to kopper
                            It looks like ESXi 5.0 now supports DS3524?

                            http://www.vmware.com/resources/compatibility/detail.php?deviceCategory=san&productid=18508&releaseid=76&deviceCategory=san&partner=43&releases=76&arrayTypes=4&isSVA=1&page=1&display_interval=10&sortColumn=Partner&sortOrder=Asc

                            Could someone confirm?
                            • Novikov_Alexander
                              Novikov_Alexander
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                              Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                              ‏2012-02-12T07:17:52Z  in response to SystemAdmin
                              Dear will sani,

                              yes, as you can see in IBM SSIC, now ESXi5 supported for x3500. Pay attention that for Blade servers it still not supported.

                              Regards,
                              Alexander Novikov
                              Russia, Moscow
                      • SystemAdmin
                        SystemAdmin
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                        Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                        ‏2012-11-28T12:03:52Z  in response to SystemAdmin
                        Sorry for bumping thread. I have the same issue. I see now VMWare 5.0 U1 is now supported. Do you know if 5.1 is supported as IBM have released it? Can anyone confirm it works?
                        • SystemAdmin
                          SystemAdmin
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                          Re: Unable to attach DS3524 LUN to more than 2 ESXi hosts

                          ‏2012-11-28T12:04:55Z  in response to SystemAdmin
                          Sorry, this is for x3650 M4