1. Add the various members of the DAG as NetVault Clients and install and configure the Exchange Plugin
2. Create backup jobs on each individual client as necessary to include all the Databases that are to be backed up
3. Restore as necessary to the individual clients.
4. In short backup and restore as though each individual member of the DAG was a Standalone Exchange DAG system.
This work around has been tested and verified for both backup and restore by our QA department in our labs.
For further information on adding NetVault Clients using the Exchange Plugin as stand-alone or for further information on backing up and restoring stand-alone Exchange Server please consult the User’s Guide for the NetVault Backup Plugin for Exchange:
https://support.quest.com/technical-documents/netvault-backup-plug-in-for-exchange/12.0/user-guide
And the NetVault Backup Admin Guide:
https://support.quest.com/technical-documents/netvault-backup/12.1/administration-guide