If you are needing to manually truncate the Exchange logs, then you may follow the steps provided below.
You should search Event IDs 2005 and 224 which determine whether the backups/log truncation have been occurring properly.
ESE – Event ID 2005 – Starting a Full Shadow Copy Backup
ESE Event ID 224 – Logs are now purged
MSExchangeIS Event ID 9780 – Backup is now complete
To resolve this issue, run the following command directly on the Exchange server to manually force log truncation.
1. Open an elevated command prompt (run as administrator) directly on the Exchange server.
2. Execute this command:
VShadow –bt=FULL X
3. Navigate to the location(s) where the Exchange logs are located and confirm whether the logs older than today are removed automatically.
Depending on the operating system, the vshadow command may not be recognized. If the command is not recognized, change directory into the AppAssure agent folder and run the vshadow command from there:
2. cd program files
3. cd apprecovery
4. cd agent
5. Enter the vshadow command and volume letters
1. Open an elevated Command prompt
2. Launch DiskShadow by typing: Diskshadow and complete the following:
a. Add volume d:
NOTE: Add one line for each additional drive to include any other relevant volumes if databases and logs are in different volumes.
b. Begin Backup
d. End Backup
3. At this step you will see the above events in the Application log indicating that backup was successful and logs are now deleted.