While backing up SQL workloads, the job returned an error saying “Unable to truncate Microsoft SQL Server transaction logs. Details: Failed to process 'TruncateSQLLog' command. Failed to truncate SQL server transaction logs for instances: . See guest helper log. .”
what could be the reason for this?
In the sql settings, I enabled “backups logs periodically” and specified retention period. does these settings have something to do with the error?
This could be SQL was too busy at the time of the backup or maybe the SQL VSS writer is not in a good state. Also if you have SQL native backup or other jobs running this can interfere as well. Best to check the job logs to see for sure.
You will find the mentioned logs from
C:\ProgramData\Veeam\Backup\VeeamGuestHelper_DATE.log
Look the logs for sql related errors.
Maybe the user used for guest interaction does not have necessary permissions?
Just like
- https://www.veeam.com/kb2027
- https://helpcenter.veeam.com/docs/backup/agents/protection_group_computers.html?ver=110
It is imperative that you take a look at the log as there could be other issues as suggested by
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