Hi Everyone
Firstly I have tried to search the forum for similar issues but can't seem to find any that match our situation.
We have a SQL Server 2012 High Availability Group with 2 Nodes
Node 1 = Primary
Node 2 = Secondary
Backup Schedule as follows
Full Database Backup @ 00:00
Transaction Log Backup every 30 minutes from 00:30:00 till 23:59:59.
These backups are run by Maintenance Jobs, but we have also tried doing direct backups in SSMS using Backup Database and Backup Log commands.
Before we configured the High Availability group the transaction log backups worked fine.
After we configured the High Availability group we performed a Full Backup and the T-Log schedule did the T-Log backup. The 1st T-log backup truncated the log (Used space Decreased) as expected.
However subsequent T-Log backups do not truncate the T-Log.
This happens both in our acceptance and Live environments. This also happens when running the backups as a Backup operator and sysadmin, this does not seem to be a permissions issue at all.
We have tried running the Backup on the Primary and Secondary Replica.
What about High Availability groups could stop Transaction Log Backups from not truncating the log?
Thanks
James