Exchange logs are not always truncated for some of the Mailbox Databases Possible errors in the Windows Event Viewer of any of the Exchange DAG Nodes: Volume Shadow Copy Service error: Unexpected erro...Exchange logs are not always truncated for some of the Mailbox Databases Possible errors in the Windows Event Viewer of any of the Exchange DAG Nodes: Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. This is often caused by incorrect security settings in either the writer or requestor process. The Microsoft Exchange Mailbox Replication service was unable to process a request due to an unexpected error.
