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Posts: 4
Registered: ‎04-24-2008
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Load Balance Multiple Clusters

I have 1 SA6000 Active/Passive Cluster and 1 SA4000 Active/Passive Cluster, each cluster has licensing for 1,000 users.  I would like to combine these clusters to allow for 2,000 users to access via 1 URL, is anyone aware if this is possible?  I have an F5 BigIP available for load balancing if that will work.



Trusted Contributor
Posts: 123
Registered: ‎11-27-2010
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Re: Load Balance Multiple Clusters

Should work fine, if your using: Load balancer persistence (sticky session).





Recognized Expert
Posts: 420
Registered: ‎03-24-2008
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Re: Load Balance Multiple Clusters

We do just what you are suggesting, though we also recently eliminated active/passive clustering, and let the F5 do all the work of failover as well.  We didn't find that the value of A/P clustering outweighed the complexity it created.


We currently have 8 6000/6500s behind a F5 LTM in 3 different pools (3 different URLs for different uses of the SAs).  Source address persistence is important - we use a persistence timer of 60 minutes.  That seems to work OK, though I think we could take it down to 20 minutes (our rekey interval).