Microsoft Exchange Database Availability Group
Starting with Veeam Backup & Replication 9.5 Update 4, Microsoft Exchange database availability group (DAG) nodes are now automatically processed sequentially. Hence, it is possible to use Veeam Agent for Microsoft Windows to process Microsoft Exchange Database Availability Groups (DAGs).
The procedure of adding a DAG to a Veeam Agent backup job differs depending on the type of the DAG that you want to process:
- For a regular DAG, the backup job configuration procedure is the same as for any failover cluster mentioned above, so all the steps above are relevant
- For an IP Less DAG (a DAG without an Administrative Access Point), the backup job configuration procedure is similar to the same method for standalone servers. To process an IP Less DAG, you must create a Veeam Agent backup job for servers in the Veeam backup console and add all nodes of the IP Less DAG (the steps below show it in detail) to this job.
Create a protection group with the DAG nodes:
Then add servers that act as DAG nodes to a Veeam Agent backup job for servers configured in Veeam Backup & Replication.
During the backup process, Veeam Backup & Replication detects that servers in the backup job are part of a DAG and creates a transactionally consistent backup of Microsoft Exchange databases running on these servers (only passive database copies are processed, and active ones are excluded from VSS freeze operations; however, the job still copies all the correspondent EDB-files of all databases from all the nodes).
Application-aware processing should be enabled for a consistent backup, log truncation, and application-item restore possibility.
If you plan to use Veeam Agent for Microsoft Windows to back up your DAG cluster, be advised that Agents deployed via Veeam Backup & Replication version before 9.5 Update 4 cannot process a DAG as a regular failover cluster.