Reallocate Existing Volumes with Snapshots

[MRJORDANG]

Hello,

I've added several disks to an aggregate.   I'd like to reallocate existing volumes and snapshots of those volumes across the new disks in the aggregate.   Is there any way to reallocate a volume and its snapshots across the new disks in an aggregate?  

Everything I've come across seems to indicate that one must delete all volume snapshots before reallocating a volume across the new disks is possible.  I hope there is a way to reallocate volumes without deleting their snaps!  🙂

Thanks,

Jordan

[MRJORDANG]

Looks like I can use the -p option with the reallocate command.   (reallocate -p), Time to look into that option.

[kotapavan · Accepted solution]

Yes, you can use the -p option, but make sure the volume has some extra free space as the snapshot sizes grow more than expected as this is a physical reallocation.

[RAVI_PALADUGU]

Please find the attached document for accurate information.

[HENRYPAN2]

Thanks Ravi for share the note

Cheers

Henry

[MRJORDANG]

Thanks for sharing the tech note!

[RAVI_PALADUGU]

Hi Jordang,

If you feel your question is answered you can please mark the question as answered.

Thanks

Ravi

[MRJORDANG]

Done.

[aborzenkov]

To redistribute data across disks you should use "reallocate -A". Simple reallocate will not touch snapshot data.

You should consider removeing aggregate snapshots, as reallocation will cause "growth" of them.