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6 replies Latest Post - ‏2013-07-16T13:54:53Z by AndersLorensen
dirkdigs
dirkdigs
56 Posts
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Pinned topic v7000 volume showing multiple instances in server 2008 R2

‏2013-07-11T19:39:49Z |

I have created a volume on the v7000, defined my host mappings (Fiber Channel) to my server 2008 R2 host.

I see the volume when looking at disk management (server 2008 r2) but it shows 5 instances. (disk 2,3,3,4,5) .. 

 

i have installed the IBM vds software for v7000 as well as the microsoft MPIO feature.

 

What am I missing?

 

  • dirkdigs
    dirkdigs
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    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-11T19:46:10Z  in response to dirkdigs

    i played around with it a bit and now when i open up diskpart > i can see 2 instances of my volume (mapped via Fiber Channel)

    1 instance shows online

    2 instance shows offline.

     

    i guess this is normal since the v7000 has 2 controllers? or is this incorrect?

    • AndersLorensen
      AndersLorensen
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      Re: v7000 volume showing multiple instances in server 2008 R2

      ‏2013-07-14T10:35:05Z  in response to dirkdigs

      Looks very much like you dont have the multipath driver installed correctly.

       

      Is this the one you have installed?

      http://www-01.ibm.com/support/docview.wss?uid=ssg1S4000350

       

      You should only see 1 disk in the disk manager per volume you present to the host. the Multipath driver should see 2-16 depending on your fiber infrastructure, cabling, HBA's in server etc.)

       

      --

      Anders

      • dirkdigs
        dirkdigs
        56 Posts
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        Re: v7000 volume showing multiple instances in server 2008 R2

        ‏2013-07-15T02:13:39Z  in response to AndersLorensen

        nope. what is 

        SDDDSM ?

        • AndersLorensen
          AndersLorensen
          156 Posts
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          Re: v7000 volume showing multiple instances in server 2008 R2

          ‏2013-07-15T07:27:09Z  in response to dirkdigs

          Its the Multipath driver IBM makes for the Storwize.(and other storage systems IBM makes)

           

          A Multipath driver is a driver that handles all tasks related to the storage, including failover etc., so you just see 1 disk in the disk manager you can use.

          Some OS'es have build-in multipath drivers, others dont. VMWare for example have it build-in, so you dont have to do anything for it to Work.

          But Windows dont. They have MPIO which is a framework/API for multipathing, where you install a vendor specific DSM driver from your storage vendor.

           

          --

          Anders

          • dirkdigs
            dirkdigs
            56 Posts
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            Re: v7000 volume showing multiple instances in server 2008 R2

            ‏2013-07-15T13:46:01Z  in response to AndersLorensen

            should the volumes show up in "storage explorer for SANS" in windows server ? i keep getting an error when trying. it says the hardware provided vds or windows vds is not installed. i have installed the vds from ibm. but still not showing. just wondering if anyone has gotten this work?

            • AndersLorensen
              AndersLorensen
              156 Posts
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              Re: v7000 volume showing multiple instances in server 2008 R2

              ‏2013-07-16T13:54:53Z  in response to dirkdigs

              I dont know the Storage Explorer for SANs, so no idea if you can use that with the V7000.

               

              --

              Anders