Running a snapshot consolidation from vSphere fails with the following error
This issue can by fixed by employing either of these two methods:
1. Power off the VMware Proxy. Go to 'Edit Settings' on your VMware Proxy and check for the attached disk(s), you should see extra disks here (affected VMs disks). From here, remove/unlink the hot added disks from the VMware Proxy. Do Not Delete the Disks, Only remove them from this Virtual Machine. Power the VM back on and run the consolidation again.
Once disks are unlinked from the backup software VM then you need to run Snapshot consolidation on affected and this time it will consolidate all snapshots to base disk and complete without any issue.
2. In this method Storage vMotion the affected VM to another datastore (Right click on VM => Migrate => now you need choose migrate disks to another available datastore – this will clear lock on disk files of the virtual machine.
Now run the Snapshot consolidation and it will complete without any issue.