The common error codes are exit codes 2, 130, 13 and 156
but the one we get more often is exit code 130, we have opened many case with Symantec support about this issue but have not got any resolution. we only get on a finger pointing between Symantec and Microsoft supports.
Symantec claims that is a VSS writer issue and Microsoft claims that is the way tha Netbackup handles the VSS writers.
when the backup fails with code 130, the VSS writers are in "Rretriable error" mode, but if we run a manual backup on that database it completes successfully.
Writer name: 'Microsoft Exchange Replica Writer'
Writer Id: {76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}
Writer Instance Id: {6e4edb49-7ef3-4913-9997-a7b3a6033cec}
State: [7] Failed
Last error: Retryable error
The other issue is that sometimes there are no errors anywhere and some databases are "skip" they are not listed in the work order. the backup completes successfully but some databases are missing from backups.
we have seen these errors on the nodes.
Event ID 2112
The Microsoft Exchange Replication service VSS Writer instance 6ed07bb5-166e-412a-867b-9302e4694891 failed with error code 80070020 when preparing for a backup of database 'nambx21'.
Event ID 2024
Exchange VSS writer 8/29/2012 8:05:29 PM
Event ID 2032
Exchange VSS writer 8/29/2012 8:05:29 PM
The Microsoft Exchange Replication service VSS Writer failed when terminating the backup.