Hi All,

Scenario: two node 2013SP1 DAG in single site with three NICs: MAPI, Replication and Backup Networks.

Obviously the backup network is currently disabled for cluster usage. The backup team has requested an administrative access point on the backup network.

My concerns: if I add an additional IP address to the CNO on that network, will this interfere with the cluster functionality? The backup subnet is not included in any AD site configuration. Should I define the backup network as an additional MAPI network and add the subnet to the AD site? Will the cluster service even activate this address, or just treat it as a multi-site setup?

Or am I overthinking this and adding an additional IP address in a different subnet will have no effect?
How are others handling this situation (third party Backup application that requires an administrative access point)?

Thx in advance!
Rgds - M.

Hi Max,

You may go through this article its for Ex2010 but it should not be much diffrent for Ex2013

http://blogs.technet.com/b/timmcmic/archive/2011/10/25/exchange-2010-implementing-a-dedicated-backup-network-for-a-database-availability-group.aspx

Best practice is to connect the backup server to both MAPI and backup networks.