Jeremy Phillips

How To: Failover from CCR to SCR

Kevin Miller just wrote a very informative post on failing over from a 2007 CCR cluster to the SCR target. I would recommend reading through it when you get the chance. The time to learn how to failover to your disaster recovery systems is before the disaster happens after all. :)

There are two ways to configure the SCR failover:

• Standalone Server Configure the failover SCR server as a standalone mailbox server. When you will fail to it you run Move-Mailbox –ConfigurationOnly for all of the users in the failover database to tell users that they have moved to a new server. When Outlook 2007 connects to Exchange AutoConfigure will reconfigure Outlook to point to the new SCR server.
• Passive Cluster Node Configure the SCR failover sever as a passive cluster node. When you fail to it you run Setup.com /RecoverCMS and seize the Cluster name. There is no further user configuration needed after this.

For my test I used the second option and configured the SCR failover server as a passive cluster node. This was simple to do, all I did was pick Passive cluster node during setup and then configured SCR and I was good to go. The following sections cover the steps that I took to Fail to SCR, Fail Back to CCR then reestablish SCR.

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