Data Backup and Recovery

SnapDrive 6.2 on Windows Server 2008 R2 disk signature collision

thomas_glodde

Hi folks,

upon mounting a snapshot LUN using SnapDrive 6.2 on Windows Server 2008 R2, the operation times out after 120. If i check disk management during disk mount, i see the lun clone as "offline", telling me "die disk is offline because it has a signature collision woth another disk that is online".

Configuration fits the IMT perfectly.

Any suggestions?

Thanks & kind regards

Thomas

5 REPLIES 5

lwei

Hi Thomas,

What are the steps to reproduce the problem? If it is reproducible, then maybe you should report a bug.

Just my 2 cents,

Wei

thomas_glodde

Hi Wei|

I use Windows 2008 R2 englisch RTM on vSphere 4. Regardless of iSCSI in the VM or iSCSI/FC RDM, create and connect works but connecting a snapshot LUN (eg Exchange

2010 Verify) fails with the error mentioned above¤

I cannot seem to be the only one having & testing such a configuration can i?!

Kind regards,

Thomas

Not sure if this applies or not, but may be worth a try.  https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb56220

On the Windows host

Open a command prompt, and type “diskpart”

DISKPART> san

SAN Policy  : Online All

DISKPART> san policy=offlineshared

DiskPart successfully changed the SAN policy for the current operating system.

DISKPART> san

SAN Policy  : Offline Shared

Daniel,

Good idea, will give it a try! Have just been playing around with mountvol.

Thanks

Thomas

Works like a charm! Thanks alot!

Announcements
NetApp on Discord Image

We're on Discord, are you?

Live Chat, Watch Parties, and More!

Explore Banner

Meet Explore, NetApp’s digital sales platform

Engage digitally throughout the sales process, from product discovery to configuration, and handle all your post-purchase needs.

NetApp Insights to Action
I2A Banner
Public