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Identify P2000 LUN in Windows Server 2008 R2

 
Matthias Kretschmer
Frequent Advisor

Identify P2000 LUN in Windows Server 2008 R2

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

3 REPLIES 3
Johan Guldmyr
Honored Contributor

Re: Identify P2000 LUN in Windows Server 2008 R2

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
Frequent Advisor

Re: Identify P2000 LUN in Windows Server 2008 R2

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
Occasional Visitor

Re: Identify P2000 LUN in Windows Server 2008 R2

'Hi Matthias,

 

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

 

Kind Regards,