At 08:40 19-12-02 -0500, Carlos Ordonez wrote:
You can use LVS (Linux Virtual Servers) as a load balancer and high availability clustering technique.
Didn't LVS use a heartbeat to check the presence of the worker servers? If so, then I think that is not good on z/VM unless you have techniques to shutdown and autolog servers on demand so that you never have servers that would otherwise be idle.
I admit that I have not looked in enough detail yet at all knobs and tweaks, but I believe most of such load balancing schemes tend to round-robin over the workers. That would scale less well than a stack or push-down list (like VM TCP/IP uses with multiple servers on a port) because it keeps all penguins around rather than try with as little as you can. Rob
