ESXi 5.1 (Free) moving a RDM from one Windows 2012 server VM to another.

[RimBlock]

Hi

I am trying out Win Server 2012 Essentials R2 and have a RDM 8TB mapping which I have taken from a current Win Server 2012 Essentials VM and would like to remap on this VM.

After removing it from the original VM I got the error about backing not supported for device 0 so removed the RDM vmdk files and recreated them.

I can now map the RDM to the new Windows Server 2012 Essentials R2 VM and I can see two partitions in disk manager both listed as healthy but I cannot assign drive letters to them and so cannot get access.

If I look in server manager under volumes then only the C: and associated volume is present but under disks both the C: (ESXi virtual disk) and the RDM (COMSTAR) disk is displayed.

If I look on the ESXi server I can see the LUN mapping and two partitions under it.

naa.600144f04d9d0400000051c523710001
naa.600144f04d9d0400000051c523710001:1
naa.600144f04d9d0400000051c523710001:2

The RDM was created with...

vmkfstools -z /vmfs/devices/disks/naa.600144f04d9d0400000051c523710001 /vmfs/volumes/51d88bf5-8d788375-62d9-00a0d1eec4c8/RDM/RDM-storage-media.vmdk

How can I regain access to my RDM partitions ?. I am sort of suspecting it is a Windows server security feature that is locking them out at the moment but am happy to be corrected. I would rather not loose the information on that array.

Suggestions ?.

Thanks
RB

 

[Shad]

Have you tried mapping against the vml device instead? Some info here: http://kb.vmware.com/selfservice/mi...nguage=en_US&cmd=displayKC&externalId=1014953

 

[RimBlock]

Worked a treat.

Cheers
RB