XCP-NG force VMs to not be on the same server?

Computer Hardware & Server Infrastructure Builds
1

Is there a way to force a couple VMs so that they do not end up on the same host unless there is only one host left? I just did a rolling pool update, and as usual, both of my DC ending up on Host 1 which is also the pool master. I manually migrated DC2 over to Host 2 which is often what I end up doing. Just thought I would ask if there is a way to weight but not assign a VM to a different host.

I know I can prefer a host, which I guess would work and I’ll look into this.

2

Yes, it is done by tags and then setting up the loadbalance feature. Once you set the affinity tags it will evenly separate the vm’s with that tag.

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1 Like
3

Thanks, I’ll read up on that.

4

Yes, you can achieve this by setting anti-affinity rules for your VMs. Anti-affinity rules ensure that specific VMs do not run on the same host unless there are no other hosts available. This can be done in most virtualization platforms.