[pve-devel] [RFC common/cluster/ha-manager/docs/manager v2 00/40] HA colocation rules

DERUMIER, Alexandre alexandre.derumier at groupe-cyllene.com
Fri Jun 20 19:45:47 CEST 2025


>>1) Having "location" and "colocation" rules is, I think, going to be
>>unnecessarily confusing for people. While it isn't too complicated to
>>glean
>>the distinction once having read the descriptions of them (and I had
>>to go
>>read the descriptions), they don't convey immediately how they
>>differentiate themselves from each other. I think the concepts are
>>better
>>described by something like "host-service affinity" (for positive or
>>negative affinity between service(s) and specific host(s)/Resource
>>Pools),
>>and "service-service affinity" (for positive or negative affinity
>>between
>>multiple services (where any relationship to specific hosts are
>>inconsequential or specifically undesirable).

Hi, I had already said the same as comment of the v1 patch,

I don't care personally, but all my customers coming from vmware, xcp-
ng, or cloud provider with ec2 or gcp, everybody in the industry is
using "affinity/antifinity host/vms" since 20years , and I'm pretty
sure that if they read the doc and some whitepaper/benchmark
comparaison  on the net (not even talking about chatgpt lol), they'll
think that the feature is not available.

Alexandre


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