Home > Exchange 2007 > How to recover an Exchange 2007 CCR Node in a DR situation.

How to recover an Exchange 2007 CCR Node in a DR situation.

In my test lab, I wanted to determine the best way to recover a CCR node in the event the server fails due to corruption, hardware failure or the OS just tanks.  Here are the steps I have found to work: 

(Taken from: http://technet.microsoft.com/en-us/library/bb124095.aspx)

  1. Evict the corrupted node from the Windows 2008 Cluster.  Delete any DNS entries or Computer objects relating to the failed machine from AD and DNS.  You may have to use ADSIEDIT.
  2. Rebuild the Physical machine with the same OS, Patches and VLAN (network) configurations
  3. Add the node to the existing Windows 2008 Cluster
  4. Install Exchange 2007.  During the installation Select the Passive Mailbox Role
  5. Fail the services over to the new Node.  Take the services offline.
      • Note: This will break service while the node is being recovered or the SGs initially will not mount.
  6. Once the Exchange Passive Node installation completes, open a command prompt at type:
    • Setup.com /recoverCMS /CMSName:<Exchange Virtual Cluster Name> /CMSIPaddress:<IP Address of the Exchange Virtual Cluster Name> (An Example would be: Setup.com /recoverCMS /CMSName:MSX-MAIL01 /CMSIPaddress:192.168.0.50)
      • Note: The Storage configuration should match that of the lost clustered mailbox server prior to running Setup.com.  After restoring a CCR environment, replication is suspended. Replication must be enabled before the CCR environment is fully operational. In addition, you may need to reseed the passive copy of one or more databases.
  7. After the clustered mailbox server has been recovered, the Microsoft Exchange System Attendant service will start and then stop. You must then manually bring the System Attendant resource online
  8. The expected behavior for this operation is that the databases will not be mounted at the end of recovery. The databases will stay dismounted throughout the move and failovers until you explicitly mount the databases.
  9. Install the passive clustered mailbox role on other passive nodes, if necessary.
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