Topic
10 replies Latest Post - ‏2013-07-15T02:12:20Z by dirkdigs
dirkdigs
dirkdigs
51 Posts
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Pinned topic v7000 remove from pool is greyed out

‏2013-07-11T20:46:56Z |

why is "remove from pool" greyed out when looking at certain storage pools. seems to be the internal storage only.

i want to move an mdisk to another storage pool.

Updated on 2013-07-11T20:47:06Z at 2013-07-11T20:47:06Z by dirkdigs
  • chriscanto
    chriscanto
    230 Posts
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    Re: v7000 remove from pool is greyed out

    ‏2013-07-11T21:07:21Z  in response to dirkdigs

    When you remove an array mdisk from a storage pool you're actually deleting the array; the member drives return to candidates.  You can then create a new array from them, adding it into another storage pool.

    I'm not sure why the remove from pool option would be greyed out, unless perhaps there isn't enough free capacity in the pool to migrate the data off that array mdisk before doing the delete? (not actually sure if that's something the GUI would check for?)   Could you attach a screenshot and say what version of software you're running?

    • dirkdigs
      dirkdigs
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      Re: v7000 remove from pool is greyed out

      ‏2013-07-11T21:14:36Z  in response to chriscanto
      Software Version 6.3.0.0 (build 54.6.1111250000)

      basically i want to have one single volume to present to my server. (approx 50TB)

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      Updated on 2013-07-11T21:15:45Z at 2013-07-11T21:15:45Z by dirkdigs
      • chriscanto
        chriscanto
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        Re: v7000 remove from pool is greyed out

        ‏2013-07-11T21:27:09Z  in response to dirkdigs

        A couple of thoughts:

        1. As you've cropped the screenshot, I can't see which user you're logged in as.  If you're using a custom user then it might be that user isn't in a group with permissions to perform that sort of configuration change.  In that case, log in as a user that can (e.g. superuser).

        2. The 6.3.0.0 version is coming up on 2 years old.  It would make sense to upgrade to the latest available software level to see if that resolves the problem you're seeing.  It's especially worth upgrading the system at this point if this is a new installation and you're still doing the initial setup; much easier to do it now than when you're in production.  Plus, the software upgrades are free.

        The upgrade matrix is the best starting point:

        http://www.ibm.com/support/docview.wss?uid=ssg1S1003705

        There is also a similar link in the upgrade wizard in the GUI itself.

  • dirkdigs
    dirkdigs
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    Re: v7000 remove from pool is greyed out

    ‏2013-07-11T21:23:15Z  in response to dirkdigs

    shoul i upgrade to 6.3.0.7 or maybe 6.4?

    • chriscanto
      chriscanto
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      Re: v7000 remove from pool is greyed out

      ‏2013-07-11T21:35:57Z  in response to dirkdigs

      If you're not yet in production, I'd be tempted to take the jump directly up to the latest: 7.1.0.1

      You can expect there to be much more frequent updates for bug fixes and interop items on the latest codestream, whereas the previous codestreams are effectively in maintenance mode now, with only critical fixes being released.

      • dirkdigs
        dirkdigs
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        Re: v7000 remove from pool is greyed out

        ‏2013-07-11T21:48:50Z  in response to chriscanto

        i am logged in as superuser

         

        i will update to 7.1.0.1 and let you know what happens.

         

        thanks.

      • dirkdigs
        dirkdigs
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        Re: v7000 remove from pool is greyed out

        ‏2013-07-12T20:23:22Z  in response to chriscanto

        upgrade was successful. no longer getting "remove from pool" being greyed out.

         

        how ever i still cant add all my disks to the same storage pool (mdisk group)

         

        i have 24 internal 600gb 10 k sas drives. 

        12 x 2tb 7.2k nl sas in external  enclosure (internal storage)

        16 x 2tb in ds5020 virtualized (exernal storage)

         

        how can i have all these in the same storage pool?

        • TMasteen
          TMasteen
          260 Posts
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          Re: v7000 remove from pool is greyed out

          ‏2013-07-13T16:44:12Z  in response to dirkdigs

          Dirgkdigs,

          When I look at your drives and it was my environment I would create three storage pools (600GB, 2TB_internal and 2TB_DS5).

          Special reason to put all the mdisks in one storage pool?

          • dirkdigs
            dirkdigs
            51 Posts
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            Re: v7000 remove from pool is greyed out

            ‏2013-07-15T02:12:20Z  in response to TMasteen

            @TMasteen

             

            reason would be the customer wanted too be able to see one volume when looking at the server. but i think i will talk then out of it,

             

            what raid type would you use. the disks are being used to store video files mainly.

        • AndersLorensen
          AndersLorensen
          139 Posts
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          Re: v7000 remove from pool is greyed out

          ‏2013-07-14T10:27:35Z  in response to dirkdigs

          MDisks in a storage pool should have the same performance charactistics. Best is if they are the same raid level and same RPM, and same number of disks in the raid.(The Exception is with SSD disks in an EasyTier setup)

           

          Mixing the 16 2TB disks in the DS5020 and the 12 2TB in the Storwize could be ok, but not optimal performance wise.

           

          Having EasyTier with 3 tiers is required to be able to have SAS and SATA in the same pool - its on the roadmap, and is released for the DS8000 series, where Storwize gets its EasyTier code from - so there is hope that in the future you can do it, but you'll have to wait a bit...

           

          --

          Anders