troubleshooting Question

Exchange 2010 Dag enviroment issues

Avatar of mshaikh22
mshaikh22 asked on
ExchangeEmail ServersWindows Server 2008
22 Comments1 Solution691 ViewsLast Modified:
Dear Experts,

I am currently having some serious problems with my exchange 2010 dag environment running on 5 exchange mailbox servers and 14 databases. 3 mailbox servers holding database copies and 2 mailbox server are being used for only heartbeat for now.

2 exchange mailbox server (ex01 and ex03) are on the subnet.  (,
1 Exchange mailbox server (ex02) is on the subnet    ( (All 3 mailbox servers are on one site)
hw01 - mailbox server (seperate site)
nw01 - mailbox server (seperate site)

The cluster is on a node majority mode

dag ips

Earlier this morning, ex02 ip went offline with the following event log 1135 and dag ip came online and was offline. As a result all of the databases on went in a failed state and ip went unavailable  and was giving errors like the network manager could not be intialized.

after sometime and a reboot ex02 came back online, but ex03 ip became unavailable and its database went into failed state. I am not sure about ex03,  why did it go out and how can i bring the ip to an available state

Would need your help in the matter?

thank you


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