Are you sure you are performing a VSS Full Backup? The full server backup option in Windows Backup defaults to VSS Copy Backup which does not truncate the logs. In order to perform a VSS Full Backup, you must select custom backup, add all volumes that contain Exchange data and then select VSS Full Backup under the advanced settings.
If the logs are still not truncating, please make sure that the VSS writers are in a stable state, otherwise reset the applicable service. From the command prompt, execute:
vssadmin list writers
You can also increase the diagnostics level of the VSS writer and then examine the event log for any warnings/erros after the backup runs. From the Exchange Management Shell, execute:
Set-EventLogLevel "MSExchangeIS\9002 System\Exchange Writer" -Level expert
and to return it to the defaults:
Set-EventLogLevel "MSExchangeIS\9002 System\Exchange Writer" -Level lowest
Sean |
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