It is possible to backup exchange databases with VSS you will need to run a filesystem backup of the drive containing the databases. As long as VSS is able to freeze the filesystem you should be able to get a consistent backup. The only problems with this methodology is that VSS backups with the filesystem plugin will not provide you with any transaction log management since these operations are handled by the Exchange API's hence the reason most administrators use the exchange plugin. The other problem that may occur is if the the database and transaction logs are contained on different drives may result in a gap between when the backup of the database occurs and the transaction logs.
Can anyone here please share the documentation or the backup procedures when using Exchange Serve 2007 CCR mailbox backup from the passive node ?
I want to know if enabling or disabling the circular logging can ahve impact on the database consistency outcome ?