Over the weekend one of our FreeNAS boxes locked up under heavy load. I have everything running again except for vSphere Data Protection. Whenever it begins a backup run it will create snapshots and then a few second later remove them and return the error "VDP: Failed to Attach Disk" in the Report window. I've reviewed the logs, but they make no sense to me. (I have attached one of them to this post.)
I have run an integrity check on the Data Protection server, all is well. I have removed any old/outdated snapshots for the virtual machines. I have rebooted the Data Protection server. None of these steps have solved the issue.
I need someone more knowledgeable than me to look at the log file and give ma clue/solution to my problem.
Thanks in advance.
You need to check the vmdk file name, it could be with name servername_00001.vmdk even if there is no snapshot.
If above condition, run disk consolidation (Online or offline).
In case above does not work, check for Vmtool on the server it must be up to date and running.
At very last, take the outage of the server and reboot once and then run VDP backup on it.