Backing up Exchange 2010 with Windows Server Backup - Log's don't truncate - backup reports error - fails consistancy

Posted on 2011-05-12
Last Modified: 2012-05-11
Server 2008 Sp2 Enterprise fully patched

Two Exchange 2010 DAG fully patched

The Windows Server Backup feature was installed with command line tools.  I uninstalled the command line tools later after reading that they break the Windows Backup Server plugin for Exchange on technet.  The plugin's service is set to automatic and started.

The registry is modified to disable VSS Writer as recommended on technet, although I don't think the server ever has active and passive copies of the DAG at the same time.

The backup completes, but with this error: "Application will not be available for recovery from this backup.  Consistancy checked failed for component Microsoft Exchange."

The logs do not truncate.

Question by:LrdKanien
    LVL 3

    Expert Comment

    - Make sure the DAG replication is healthy by running the cmmand get-mailboxdatabasecopystatus
    - Try creating  a test DB on active server w/o making a copy
    - Create a test mailbox & send few emails to generate few log files
    - Try to backup the newly created DB using WSB
    - If it completes & purge log files then dismount active mailbox database & move all log files to another location
    - Mount it back & reseed the passive copy
    -Initiate backup
    - If it fails, please upload the failure report
    LVL 3

    Expert Comment

    Any update on this?

    Accepted Solution

    This was my issue:
    After changing the registry key I temporarily set the databases to enable circular logging > mount/dismount > to remove the thousands of extra logs I had.  Then the backups worked and the logs truncated.

    Author Closing Comment

    My solution fixed it.

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