Veeam backup: vbk is locked running session

This morning I realized that the Veeam backup did not run last night. And when i tried to run it again I got an error saying that the backup .vbk file was locked by a running session. (Having just rebooted the server, there should be no running job locking the .vbk file)

So I found a page describing the issue:

A few nights ago, one of our Veeam Backup jobs was hung. I tried the “Stop Job” option but seemed to have no effect. I then rebooted the backup server but found the drives for the server being backed up were still mounted to the backup server. I issued a “Retry Job” but the job came back failed with an error: “vbk is locked running session”To resolve this issue and to get the job runnable again:

  1. Launch the vSphere client, go to Edit Settings on the Veeam VM

Remove any hard drives that shouldn’t be there(VMDKs mounted for the job).

  1. Remove any orphaned snapshots on servers being backed up.

Create a manual snapshot, go into Snapshot Manager - > Delete All.

vbk is locked running session.

How to re-enable the copy-paste between VI client and VM in vSphere 4.1 | ESX Virtualization

The security has been tightened in vSphere 4.1, so that’s why by default if you install vSphere 4.1 or if you upgrade your vSphere 4.0 installation, you can’t copy paste between the VI client and the VMs running in your vSphere environment.  You can read more about why it was changed in vSphere 4.1 in ESX 4.1 configuration guide (page 213). To be able to copy and paste between the guest operating system and the remote console, you must enable the Copy and Paste option.

How to re-enable the copy-paste between VI client and VM in vSphere 4.1 | ESX Virtualization.