Warning: virtual machine: 'vm-name' disk: 'disk-name' excluded by user, was not found.
The specified virtual disk does not exist on the virtual machine.
Processing continues.
Use the "dsmc backup vm ..." command with the -preview option to display a listing of the disk labels which exist on the virtual machine. Since the disk was specified to be excluded from the backup, the backup will continue. However it is possible that a disk will included in the backup which was not desired, check the spelling of the disk label, and correct the disk label if an undesired disk is now included in the backup operation.