Exchange 2010 - DAG/Server switchover
Posted on 2013-05-29
I have exchange 2010 running on two servers. Each server has CAS, MB and HUB roles installed.
Everything is working fine, but I wanted to create a switchover procedure in the event of a problem. I'm still piecing together what I would need to do so please help me fill in the blanks.
Domain: mail.testmail.com IP 22.214.171.124 (made up of course). So the DNS record points mail.testmail.com to 126.96.36.199
Servers: ex1(188.8.131.52) and ex2 (184.108.40.206)
So let's say, ex1 goes down (or I need to take it down for maintenance). What steps do I need to do to have users connect to ex2 to send/receive their mail. I don't need this to happen automatically, manually is fine for now. I have a test system set up that I am going to practice this one first (of course!)
Step 1: Change the CAS server for each DB with something like this:
Set-MailboxDatabase -id DBNAME -RpcClientAccessServer 'ex1.testmail.lcl'
Step 2: As per an article I found on technet, move the mailbox database copies to mailbox server on ex2
In the console tree, navigate to Server Configuration > Mailbox.
In the result pane, select the Mailbox server you want.
In the action pane, select Switchover Server.
In the Switchover server database copies dialog box, do one of the following:
Accept the default setting of Automatically choose a target server (in which case, the system automatically selects the best Mailbox server for each database being switched over), and then click OK.
Click Use the specified server as the target for switchover, click Browse to select a Mailbox server, and then click OK
Step 3: Is there a step three? What do I do about DNS records? Do I just change the physical IP address on ex2 from 220.127.116.11 to 18.104.22.168 ?