I've been poking around for a better way to perform HA. With VM's like IPA or even HA web sites behind an HAProxy; how do I ensure that they are never on the same host? I've seen the options for watchdog and I can see where that may help a little, but not without the initial outage to trigger the alert. There are many ways to do this however I see few that scale. I'm sure I'm missing something and I really appreciate any guidance. Thanks all
Once upon a time, Matt Wells <matt.wells@mosaic451.com> said:
I've been poking around for a better way to perform HA. With VM's like IPA or even HA web sites behind an HAProxy; how do I ensure that they are never on the same host?
You just need to set up affinity groups. Negative affinity means keep VMs away from each other, and enforcing means _never_ do it (even it means shutting down a VM rather than moving it). -- Chris Adams <cma@cmadams.net>
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