High Availability - Redundant Server

You can start with the introduction to the service with:

http://manuals.info.apple.com/en/HighAvailability_Adminv10.4.pdf

Then, you can follow the next few steps from here

http://docs.info.apple.com/article.html?path=ServerAdmin/10.5/en/c3fs29.html

or get a good explanation from here

http://www.mactech.com/articles/mactech/Vol.23/23.03/OSXFailover-Part1/index.htm l

I will admit I have not done failover on 10.6 server yet. However, I assume that the function is the same (or similar) to previous versions.

Hope this helps

You might be in for a rough time here.

Previous versions of Mac OS X Server (10.4, 10.5) included IPFailover as a standard feature. It allows you to configure two machines to automatically take over network services for the other in case of failure.

Snow Leopard Server (10.6) makes no mention of this in any of the documentation I've read.
The daemons (/usr/sbin/failoverd and /usr/sbin/heartbeatd) still exist and the man pages describe their use but the fact that Apple have dropped any mention of IPFailover is a little disconcerting to me.

Despite the fact it was a PITA to setup I don't think it was so bad that Apple should have dropped it but the fact remains that even if you do get it working it may be pulled completely at some point in the future.

In the meantime there's no reason I can see why the 10.4 or 10.5 documentation such as chapter 14 of the 10.5 Command Line Admin Guide wouldn't apply.

Did you get it working? I'm thinking about building a high availability solution with two Mac Mini's and a QNAP array so I can replace my existing Linux LAMPs and hosted email. I just need to ensure it stays up and running.