When ever backup tool tries to backup a VM it fails with an error :
Backup tool uses VCB.
ABC\ABC.vmdk Failed Failed to open disk
ABC\ABC_1.vmdk Failed Failed to open disk
ABC\[XXX-XXX-XX-XX-XXX] ABC/ABC_1_1.vmdk Failed Failed to open disk
ABC\[XXX-XX-XX-XX-XXX] ABC/ABC_1_1_1.vmdk Failed Failed to open disk
ABC\ABC_2_1.vmdk Failed Failed to open disk
ABC\ABC_3.vmdk Failed Failed to open disk
We tried to
1) Consolidate the Disk. Consolidation Successfull.
2) Restart VM.
3) Took a new snapshot and deleted it.
4) vMotion the VM.
Still at the time of backup same error occurs.
What backup tool are you using? How it is configured to perform the backups?
We use CommVault
It seems like VCB is trying to place a lock or trying to mount the files which are failing.
I would also ask you to ensure that your VCB has an access to your cluster / VM;s