Can we have more info on your environment? Versions , O/Ss etc.
Has this ever worked?
Did it just start failing?
Anything changed recently?
Info on the KB is sparse:
NetBackup status code 272: execution of a vault notify script failed
http://www.symantec.com/business/support/index?page=content&id=TECH58757
(the above is the same info you get in the troubleshooter!)
Following 6.0MP5, running Vault as a non-root user results in error 272 (execution of a vault notify script failed)
http://www.symantec.com/business/support/index?page=content&id=TECH56203
