ghettoVCB: ERROR: Unable to backup MACHINE-NAME due to error in VMDK backup
Solution 1:
the most I can suggest by seeing the output is:
1) Are you sure the path to your NFS mount or datastore is correct in the ghettoVCB configs? Double check all NFS configs for ghettoVCB.
And...
2) Is your NFS share accepting anonymous access and granting read/write permissions?
Judging by the output, the script was able to create the snapshot but then 5 seconds later it said it could not back up the VMDK. My guess is this is a permissions issue on NFS mount. That, or lack of free space.