06-26-2012 01:12 PM
Hi,
I am using SFHA for windows i HP storage but i need to replace HP with NetApp for this i mirrored both volumes after successful mirrored i break the volume. when i break the HP volume from mirror now its added in a Volume now i want to move this OLD volume to another DG for this i need to SPLIT DG but when i am trying to split it gives me error. My question is before split the DG can i down the DG and then split the DG??
I need a procudure
Regards.
Sajid
Solved! Go to Solution.
06-27-2012 12:35 AM
As Jay says you should remove drive letters from volumes on the old array - (in GUI right click on volume and choose "File System" and then "Change Drive Letter and Path"), but on saying this, the SFW admin guide says:
Error message about forcing a split or join operationIf you attempt a dynamic disk group split or join command when a volume is inuse, Veritas Storage Foundation for Windows puts up a message asking whetheryou want to force the split or join. If the volume is in use because it is selected inWindows Explorer, then you can force the split or join safely. However, if thevolume is actually in use within an application, it is not recommended that youattempt to complete the command. If a volume is regenerating, resynching, orrecovering, then even if you force the split or join, the operation is notsuccessful.
06-26-2012 02:26 PM
Normally when you are migrating from one array to another you remove the plex on the array. Is there a reason you are breaking mirror and not removing mirror - do you want to keep the copy on the old array which is why you are spliting into a separate DG.
Why is the split failing - common reasons are there are other volumes or bitmaps on the disks you are trying to split off, or volumes on the disks you are trying to split off are in use (mounted).
Mike
06-26-2012 06:45 PM
Yes i want to keep the old volume for atleast one week. and yes when i try to split the volume the error says the volumes are in use.
Now what to do?
Sajid
06-26-2012 10:32 PM
If the error message says that volumes are in use, I can only assume the old volume that you are trying to split off into a new diskgroup is currently mounted with a drive letter (and possibly be in use by some app). Make sure no app is using the old volume, remove the drive letter from that volume and then try to split the diskgroup again.
To answer your first post's question about "down the DG", I assume you mean offline the diskgroup from the cluster and deporting the diskgroup? If so, answer is no. You cannot split a DG while it's in a deported state.
06-27-2012 12:35 AM
As Jay says you should remove drive letters from volumes on the old array - (in GUI right click on volume and choose "File System" and then "Change Drive Letter and Path"), but on saying this, the SFW admin guide says:
Error message about forcing a split or join operationIf you attempt a dynamic disk group split or join command when a volume is inuse, Veritas Storage Foundation for Windows puts up a message asking whetheryou want to force the split or join. If the volume is in use because it is selected inWindows Explorer, then you can force the split or join safely. However, if thevolume is actually in use within an application, it is not recommended that youattempt to complete the command. If a volume is regenerating, resynching, orrecovering, then even if you force the split or join, the operation is notsuccessful.