VSS backup fails on a passive node of an Exchange Server 2007 CCR cluster and Event ID 2034 is logged


In a Microsoft Exchange Server 2007 Cluster Continuous Replication (CCR) cluster environment, you run a Volume Shadow Copy Service (VSS) backup on a passive node. In this situation, the backup fail. Additionally, the following event is logged in the Application log:
When this issue occurs, the third-party backup application may report an error message that resembles the following:

0xe000037b - Using the job settings, xxxx attempted to back up the passive copy of the Exchange database. However, the passive copy was not available after the Microsoft Volume Shadow Copy Service (VSS) snapshot was performed. Try to run the job again.


This issue occurs because the Exchange Server2007 server incorrectly returns False when it calls the SetWriterFailure method of the CVssWriter class that has VSS_E_WRITERERROR_RETRYABLE specified.


To resolve this issue, install the following update rollup:

2530488 Description of Update Rollup 3 for Exchange Server 2007 Service Pack 3


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about VSS_E_WRITERERROR_RETRYABLE , visit the following Microsoft website:

Article ID: 2032592 - Last Review: Mar 31, 2011 - Revision: 1

Microsoft Exchange Server 2007 Service Pack 3, Microsoft Exchange Server 2007 Enterprise Edition, Microsoft Exchange Server 2007 Standard Edition