Question : Problem: All backups Fail with message Error: An inconsistency was encountered in the requested backup file.

I constantly get this error when using Symantec Veritas Backup Exec, or NTBackup.  They both fail.  I have moved from DAT72 tapes to external USB hard drives to isolate issue, but issue still occurs.  Here is the error from NT Backup:
Error: An inconsistency was encountered in the requested backup file.

Error: C: is not a valid drive, or you do not have access.

Here is the error from Symantec Veritas Backup Exec.
Backup- Shadow?Copy?Components Shadow?Copy?ComponentsV-79-57344-65245 - A failure occurred accessing the object list.


I know they are related and it appears to be a VSS issue. I just cannot get the issue to disappear.  

Answer : Problem: All backups Fail with message Error: An inconsistency was encountered in the requested backup file.

http://seer.support.veritas.com/docs/280671.htm

http://helpdesk.nashuamobile.com/index.php?x=&mod_id=2&id=62