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?