I have a 2008R2 SP1 server being backed up (C:, E:, system state) to disk on a remote client, using Windows Server Backup via a scheduled WBAdmin task. Usually the backup runs fine, but every now and then (and getting more frequent) the backup never finishes
-- it stalls just after starting the system state backup (which is the last part of the backup).
The log of the WBAdmin output shows
Starting to back up the system state [5/17/2012 4:36 AM]...
Found (0) files.
Found (0) files.
[repeated 2000+ times]
and ends with "^C", with no errors or warnings shown.
Normally the system state backup takes under 15 minutes to run. When it stalls the Task Scheduler terminates it 6+ hours after it starts, so it's not a matter of insufficient time.
When it stalls wbengine.exe is left running, and I terminate it in Task Manager. This is all that's required to recover, and the backup will then run fine for weeks (or more recently, days).
There are no errors or warnings in the any of the event logs during the backup time.
"vssadmin list writers" shows "No error" for all writers, though some show the state as "[5] Waiting for completion"
This used to happen once a month and I ignored it. Recently it's happened 3 times in 2 weeks.
The [win]\Logs\WindowsServerBackup folder contains a Wbadmin.0.etl log file, but when I open it in Event Viewer it only goes back an hour or two, so it's clearly limited to a size too small.
How can I troubleshoot this issue?
Thanks!
The log of the WBAdmin output shows
Starting to back up the system state [5/17/2012 4:36 AM]...
Found (0) files.
Found (0) files.
[repeated 2000+ times]
and ends with "^C", with no errors or warnings shown.
Normally the system state backup takes under 15 minutes to run. When it stalls the Task Scheduler terminates it 6+ hours after it starts, so it's not a matter of insufficient time.
When it stalls wbengine.exe is left running, and I terminate it in Task Manager. This is all that's required to recover, and the backup will then run fine for weeks (or more recently, days).
There are no errors or warnings in the any of the event logs during the backup time.
"vssadmin list writers" shows "No error" for all writers, though some show the state as "[5] Waiting for completion"
This used to happen once a month and I ignored it. Recently it's happened 3 times in 2 weeks.
The [win]\Logs\WindowsServerBackup folder contains a Wbadmin.0.etl log file, but when I open it in Event Viewer it only goes back an hour or two, so it's clearly limited to a size too small.
How can I troubleshoot this issue?
Thanks!