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Does anyone have any good information on the process to cluster two Domino servers for HA?
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Sjef BosmanGroupware ConsultantCommented:
How H do you want your A to be?

Here's a page that might give you some clues: http://docs.sun.com/app/docs/doc/806-1008/6jaasqt42?a=view 
Sjef BosmanGroupware ConsultantCommented:
Lots of possibilities for Domino Clustering, is this for applications or mail , Notes Client access or Web Access ?
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Francois KoutchoukCTOCommented:
Simplest way is use the native Domino clustering capabilities.  The instructions in the Admin Help file are rather straight forward.  It not only redirects traffic if a server goes down, it also load balances it.
Nothing to do on your Lotus Notes clients, they will be automatically redirected to the correct server.  Best of all, you can have more than two servers in a cluster, providing further redundancy.
With native Domino clustering, you don't even have to use the same operating system, so you recycle an older server as the third or fourth machine, perhaps using an antique Win2000 or Linux OS regardless of what you have on your main servers.
If you only use browsers to access the Domino servers, let us know as the setup is a bit more complex.
There are other ways to do all this, usually requiring to purchase additional hardware, software or consulting skills.  
We've used native Domino clustering with RAID drives for years, and I must say that as long as there is a network cable and power, no problem.  

Actuallu doninja asked the best questios here - clustering depends greatly on what you are tryingto accomplish, what type of system you are using and what load you are expecting.
Setting up clustering is not a difficult thing, from a settings perspective it takes you maybe 15-20 minutes including a reboot of the servers. What is much more important are the actual requirements and the network and server HW environment that the clsuter will be living in. all of that will determine what kind of cluster you want to create and how far you want to take it.

HA is just a buzz word. The real important things are deciding what part of your servers and the services )applications, mail, calendering and scheduling, etc.) that they are serving up do you want to make HA and to what level? Are you talking about just HW redundancy or also about location redundancy?Do tyou prefer a hot-hot configuration or a hot-cold spare configuration?

also, once you cluster, there are changes in the way you administer a server and what it is capable oe. You have to rethink your back-ups and data storage strategy, and, and, and .....

Once you have answered some of the questions above, you can start thinking of how to build the cluster and what settings to apply.
nwhitaker2Author Commented:
Thanks everyone
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