ICM as a failover mechanism

I am having a problem with two R5.0.6A servers. I am using TCPIP port number 8080 and ICM is listening on port 80. When a user connects with a browser, the servers are switching from one to another even though the availability index is 100 and the server availability threshold is five. In addition, when the server is down, then Notes clustering is working but Domino HTTP is not.
It sounds like ICM is working properly to me. Network blips and short-term usage spikes will cause you to bounce around ICM servers. ICM is not a failover mechanism. It is purely a load balancer. That is why people don?t failover as they would with Domino clustering.
This was first published in April 2001

Dig Deeper on Domino Resources - Part 6

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.



Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:




  • iSeries tutorials

    Search400.com's tutorials provide in-depth information on the iSeries. Our iSeries tutorials address areas you need to know about...

  • V6R1 upgrade planning checklist

    When upgrading to V6R1, make sure your software will be supported, your programs will function and the correct PTFs have been ...

  • Connecting multiple iSeries systems through DDM

    Working with databases over multiple iSeries systems can be simple when remotely connecting logical partitions with distributed ...