Exchange Incremental Backup Fails. Shadow copy instance aborted.
We have a problem with Backup Exec 12.5 when running a Exchange incremental backup. (Exchange Server 2007) Usually it completes successful, but in the last two months it has failed 5 times. Before that it never has failed. When we manually start a new run, it works fine. And it also usually works for a couple of weeks, before it encounters the error again.
We get error code: E000FED1. It seems to have something to to with VSS. When I check Event Viewer I can see that it seems to backup "First Storage Group" successful, but when it move on to "Second Storage Group" the following happens:
2013-02-07 20:08:57 - Exchange VSS Writer has prepared for backup successfully.
2013-02-07 20:09:01 - Shadow copy instance 108 starting. This will be an Incremental shadow copy.
2013-02-07 20:09:01 - Exchange VVS Writer has successfully prepared the database engine...
2013-02-07 20:09:01 - Exchange VVS Writer has prepared for Snapshot successfully.
2013-02-07 20:09:01 - Information Store.. Shadow copy instance 108 freeze started.
2013-02-07 20:09:01 - MSExchangeIS.. Second Storage Group: Shadow copy instance 108 freeze started.
2013-02-07 20:09:04 - Exchange VSS Writer has frozen the storage group(s) successfully.
2013-02-07 20:09:32 - Information Store.. Shadow copy instance 108 freeze ended.
2013-02-07 20:09:32 - Error - Information Store.. Shadow copy instance 108 aborted.
When I compare log above with a log from the day before when it completed successful, the diffrence is only the aborted-row. Of course, when successful, it didn't abort but instead the log reads: "Exchange VSS Writer.. has thawed the storage group(s) successfully."
The time between "frozen.. successfully" and "freeze ended" logs is just 5 seconds in a successful backup, but in this failed backup, it's 28 seconds. Could it be a timeout error?
Greatful for any ideas about what is causing this failure.