Topic
  • 6 replies
  • Latest Post - ‏2013-07-16T13:54:53Z by AndersLorensen
dirkdigs
dirkdigs
57 Posts

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
    57 Posts

    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-11T19:46:10Z  

    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
    156 Posts

    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-14T10:35:05Z  
    • dirkdigs
    • ‏2013-07-11T19:46:10Z

    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?

    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
    57 Posts

    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-15T02:13:39Z  

    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

    nope. what is 

    SDDDSM ?

  • AndersLorensen
    AndersLorensen
    156 Posts

    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-15T07:27:09Z  
    • dirkdigs
    • ‏2013-07-15T02:13:39Z

    nope. what is 

    SDDDSM ?

    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
    57 Posts

    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-15T13:46:01Z  

    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

    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

    Re: v7000 volume showing multiple instances in server 2008 R2

    ‏2013-07-16T13:54:53Z  
    • dirkdigs
    • ‏2013-07-15T13:46:01Z

    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?

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

     

    --

    Anders