Backing up files from a NAS to a tape, I got an AOFO intialization failure warning. The whole message is:
- AOFO: Initialization failure on: "D:". Advanced Open File Option used: Microsoft Volume Shadow Copy Service (VSS).
V-79-10000-11235 - VSS Snapshot error. Microsoft Volume Shadow Copy Service (VSS) cannot communicate with the writers. Check that the Volume Shadow Copy Service is started, and check the Windows Event Viewer for errors related to this service.
We don't use AOFO on this job, so I'm confused about that in general, but when I checked the VSS writers, everything was stable with no errors.
Possibly related: over the past 6 weeks or so, we've been getting occasional (once every 10 days or so?) job failures on a sharepoint system state backup with the exact same error message (except "System?State" in place of "D:" above). The sharepoint failures never happen two days in a row, and the only abnormality is a VSS error in the log (Symantec support pointed us at a MS hotfix for the logged VSS error, which I haven't had a chance to install yet).
The NAS warning today was the first we've seen on that box, and there were no errors in the log on the NAS or the media server (other than warning logged for the job warning).
So, any ideas why we'd get an AOFO error on a straight file backup NAS-to-tape job?
Sorry for getting back to you so late. AOFO isn't turned on in the first place. This only happened that one day, so I'm still not sure if there's a problem or if it's related to the other identical errors or what. I just thought I'd throw this out onto the forum to see if anyone else was getting similar errors. I'll keep poking around and update this thread with any relevant information.
This exception is generated after a backup has been performed of SQL databases that are set with a Recovery Model of "Full" or "Bulk-logged". However , if it is set to "Simple" , it will not generate the exception. This is done by accessing the database properties >>> Option on SQL Server.
When it is set to "Full" , the transaction logs will be managed by Backup Application. When it is set to "Simple" , transaction logs will be managed by SQL itself. Drawback with setting it to "Simple" is , it will not allow point in time recovery for the database , therefore its recommended to set it to "Full" or " Bulked".
This exception will not occur on every backup of a SQL database. This exception is generated after 11 Full backups of SQL Databases, the 12th backup will display this error message.
This exception is designed to help customers manage the size of SQL databases and transaction logs. Symantec recommends scheduling regular log backups of databases this will help keep the transaction logs at a manageable size.
For more information about SQL Recovery Modes, please visit the following Microsoft TechNet article below:
NOTE: This Exception was added in Backup Exec 2010, it was not in previous versions of Backup Exec.