Issue assigning storage from a SAN to a Physical Windows 2008 Server

Posted on 2011-04-21
Medium Priority
Last Modified: 2012-05-11
Hi Folks,

I am currently having an issue attaching storage from an EMC AX4-5 SAN to a physical Windows 2008 R2 x64 Server.  I know there are many variables involved with a question such this, so I will try to make this as simple as possible and provide screen shots (Pictures worth a thousand words).

I have assigned the storage space on the SAN to the Server I wish to use it on however for some reason the storage space shows up on the Windows 2008 Server in Disk Management as Four Separate Disks (See Picture) which have not been Initialized.

The Share and Storage Management feature of Windows 2008 does not recognize it (See Picture) and I cannot find the WWN of the Shared Storage within the Storage Explorer feature of Windows 2008.  

Things I've tried:

Updated HBA Card Drivers
Re-Scanned for new storage/disks
Destroyed the Share on the SAN and Re-Assigned to the Server

I have also verified that the storage being shared with the Server and showing up as 4 separate disks is the storage I have assigned from the SAN.  I have done so by removing said storage, rescanning the disks from the OS and watched the Disks disappear from the listing.  I then assigned a different sized Share from the SAN to the Server and watched as I rescanned from Disk Management to see Four new Disks with the size of the share I just assigned appear.

To date I have only been assigning SAN storage to VMware ESXi Hosts so this is a bit new for me although it's the same task just in Windows.  I'm sure I must be missing a step but perhaps if I bounce this off of the community I might get some advice which points me in the right direction.  Let me know if you guys require more information/screen-shots and I will provide them for you.

Question by:RyanMyers83
  • 2
LVL 56

Accepted Solution

andyalder earned 2000 total points
ID: 35444458
You haven't configured your multipath software. Are you going to use EMC Powerpath or Windows MPIO?

Author Comment

ID: 35447940
I hadn't considered this yet.  I installed the MPIO Feature and after a reboot and some tweaking I got it to recognize one drive instead of four.  I wasn't however able to get it to "initialize" the disk and I may have missed something on that side.  I have found a copy of EMC Powerpath and will give that a whirl (doing this right now).  I will keep you posted.  Thanks for the direction...

Once I get this resolved I will accept your solution.

Author Closing Comment

ID: 35448169
Powerpath was the key.  No additional configuration was even required.  After reboot it saw 1 Disk and it initialized without issue.

Thanks again.

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