The backup did not complete successfully, and no log files were truncated for this database.

When I run backup on my exchange server 2010 it fails with error “The backup did not complete successfully, and no log files were truncated for this database.” I have been using Windows Server Backup since the day I got exchange 2010 installed.
The status of Windows Backup is Completed with warnings.

In the application log I am getting Event ID 9782 and Event ID 565.


Checked the health of Exchaneg Writers by running the command vssadmin list writers and writer was stable. Did some research and found that there is one RegistryKey EnableVSSWriter Key which needs to be added on the exchange server.

´╗┐After doing the change in registry I had to restart the Microsoft Exchange Replication service. But when I went to restart this server it failed with local server error. In application I got two Event ID 4004 and Event ID 4999. Lession learned here is, this registy entry is not for stand alone exchange server but the server in DAG (Database Availability Group). Deleted the registry key EnableVSSWriter and started the service.
I had McAfee anti virus installed on the server and checked the C:Quarantine folder and found that their are tons of file with .bup and each file is of 1 MB.
Set the exclustion on database (.edb) and (.log) file of exchange server and ran the backup again and backup failed again. Stopped all the McAfee services on the server and ran the backup and it completed successfully.
Note: You will not able to stop McAfee services until or unless you disable the component from McAfree console.
Remember Windows Server Backup is volume level backup and you should install 3rd party backup application for exchange server backup.
I hope this article helps.