Exchange 2010 DAG replication disabled

I have 3 exchange 2010 servers setup by an outside firm. 2 here at my office 1 at my DR site. There is a DAG setup. I'm not an Exchange expert was going through all of the Exchange settings. I can see 2 nic adapters setup on each server, one called mapi, and one called replication. So far so good. The replication adapters are all disabled.

In the EMC I can see a network called DAGNetwork01 - I would assume that my replication is using this mapi network?? Yet right under DAGNetwork01 it says 'replication disabled'. I'm also getting stuff in event viewer about 'no netorks are configured for replication.

Yet, I think my 3 servers are all replicating. How can I check this and be sure that replication is happening - and why is replication disabled? Thanks
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imkotteesSenior Messaging EngineerCommented:

Do you see passive copies as Healthy? if so replication is happening properly.

Get-MailboxDatabaseCopyStatus -Server ServerName

To verify the replication between the servers run the below command


This command should have to pass on all the nodes. If there is any error troubleshoot the issue accordingly.

By running the command test-replicationhealth |fl you will get a brief information on the Current error.

Also you can check the events under Failover Clustering Manager.

Imran Shariff
cb_itAuthor Commented:
Passive copies are healthy, so that is good. Is Exchange replication and Failover clustering 2 different things??

In Exchange it says 'replcation disabled' - so how am I replicating?

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cb_itAuthor Commented:
[PS] C:\Windows\system32>Test-replicationhealth

Server          Check                      Result     Error
------          -----                      ------     -----
EXCH01                ClusterService             Passed
EXCH01                ReplayService              Passed
EXCH01                ActiveManager              Passed
EXCH01                TasksRpcListener           Passed
EXCH01                TcpListener                Passed
EXCH01                ServerLocatorService       Passed
EXCH01                DagMembersUp               Passed
EXCH01                ClusterNetwork             WARNING    Replication is disabled on all networks. This is not a recomme...
EXCH01                QuorumGroup                Passed
EXCH01                DBCopySuspended            Passed
EXCH01                DBCopyFailed               Passed
EXCH01                DBInitializing             Passed
EXCH01                DBDisconnected             Passed
EXCH01                DBLogCopyKeepingUp         Passed
EXCH01                DBLogReplayKeepingUp       Passed

[PS] C:\Windows\system32>

The warning is just because your replication Nic cards are disabled.

Imran Shariff

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There are specific networking requirements that must be met for each DAG and for each DAG member.

 Each DAG must have a single MAPI network, which is used by a DAG member to communicate with other servers (for example, other Exchange 2010 servers or directory servers), and zero or more Replication networks, which are networks dedicated to log shipping and seeding.

Although a single network is supported, we recommend that each DAG have at least two networks: a single MAPI network and a single Replication network. This provides redundancy for the network and the network path, and enables the system to distinguish between a server failure and a network failure. Using a single network adapter prevents the system from distinguishing between these two types of failures.

Imran Shariff
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