

Of course, consolidating the snapshot did not work in my case. How can you find out if any of your VMs needs snapshots to be consolidated? You can simply add the “consolidation” tab to the VI client, find any VMs that require consolidation and kick it off: When this warning pops up, the snapshot is already removed from the VM, but the snapshot files could not be consolidated back into the base disk. So what is causing this “needs consolidation” warning? Looking at VMware KB Article 2003638, a need for consolidation is now visible (the need has always been there 😉 ). And my luck was, that selecting “consolidate” ended in that one brilliant error: Unable to access file since it is locked.

No snapshot present on the VM which could not be backed up – but a yellow mention in the VI client: “ Configuration Issues – Virtual Machine disks consolidation is needed“. As I am testing several third party backup tools, this morning I stumbled upon a failed backup.
