2017-01-25 06:20 AM - last edited on 2017-02-22 11:12 AM by alissa
We are in the process of migrating VMs from our current FAS to a new FAS. Current is running OnTap 8.3.2 and new OnTap 9.1 and volumes are mounted NFSv3.
After migrating a fair number of VMs and enabling efficiency on the new volume, the effiiciency job completed. Hours later and it's still showing 0% savings for the volume.
Is there any way that the deduplication of the VMs could be preserved when performing an svmotion between two separate clusters like this?
Solved! SEE THE SOLUTION
2017-02-13 09:33 AM
Unfortunately not without using storage array level replication, like SnapMirror, to move the entire datastore followed by performing a cutover...which is a disruptive operation (the VMs would need to be shutdown, removed from inventory at the old location, then re-added from the new).
Did you enable (post-process) deduplication after the data was added to the volume? If so you'll need to do
volume efficiency start -vserver <vserver_name> -volume <volume_name> -scan-all
Hope that helps.