Identify P2000 LUN in Windows Server 2008 R2

[Matthias Kretschmer]

Hello,

I have a P2000 connected to two Windows Server 2008 R2 via FibreChannel with a FibreChannel Switch.

The luns of the P2000 are Multipathed via Windows MPIO.

I need to delete one lun and create three new out of the claimed space.

The problem is that I can not identify which luns is representing which disk in Windows.

I do not want to risk to delete the wrong lun on the P2000.

Is there a GUID I can compare on both sides (P2000 and Windows)?

How can I identify which lun represents which disk?

Thank you very much in advance.

Best regards,

Matthias

[Johan Guldmyr]

Hi,

are the disks the exact same size?

If your server with the important lun can survive without it for a little while you could to unpresent the vdisk.

Perhaps the FC HBA's utility can show more information about the LUNs it sees - like QLogic's SANSurfer.

[Matthias Kretschmer]

Thank you for your reply, Johan.

I got it.

I did not find the WWN in Windows.

I tried it with diskpart uniqueid but what I got was not the WWN of the LUN on the P2000.

I now compare the LUN number in the P2000 mapping with the LUN number in Windows Disk Management.

BR

Matthias

[zonk3]

'Hi Matthias,

Please explain again......... Im trying to follow what u posted up and keep hitting a wall......

Kind Regards,