Load Balancing an exsisting HA Pair

[Rickc]

Hi everyone,

I have been looking around for more info on load balancing, we currently have 2x servers configured with suse enterprise 10 and they are in a high availability pair. Server A and Server B, server B takes over should A fail. The problem we are having is that the load is increasing on A so we want to add another server so the load can be shared to this server, server C.
How can we do this?

Thanks
Rick

[HROAdmin26]

Since no one has ANY idea WHAT you are trying to load balance, trying Google: load balance "application_to_balance" linux

[waterhead]

This question was recently discussed in my local Linux User Group. It actually was about High Availability, but I believe it is the same thing.

Here are links to some of the solutions that were suggested:
http://crossroads.e-tunity.com/index.xr
PF: Firewall Redundancy with CARP and pfsync
Create a Load Balance Server Using Ubuntu « Code Ghar
HomePage: Linux HA
The Linux Virtual Server Project - Linux Server Cluster for Load Balancing
IBM : developerWorks : Site maintenance

Happy Reading!

[HROAdmin26]

HA and Load Balancing (LB) are *not* the same thing. One is redundancy - the other is spreading a load across multiple resources. Most effectively, they are used together. Implementation varies greatly depending on the resource/application that needs to be available.

Active/Passive clusters are HA (resource is only active on one node at a time) while *some* Active/Active clusters could be HA and LB at the same time. DNS round-robin mechanisms are LB, etc.

HA is about eliminating any single point of failure. LB is not. (If the DNS round-robin program/device dies, then DNS is offline. So this device is great for LB but fails as an HA design.)