On Mon, Mar 19, 2018 at 8:34 PM, Chris Adams <cma@cmadams.net> wrote:

I have a reasonable feel for how to size hardware for an oVirt cluster
with external storage (our current setups all use iSCSI to talk to a
SAN). I'm looking at a hyperconverged oVirt+Gluster setup; are there
guides for figuring out the additional Gluster resource requirements? I
assume I need to allow for additional CPU and RAM, I just don't know how
to size it (based on I/O I guess?).

Sizing for hyperconverged is very similar - ensure there is enough resources for gluster to run.

Gluster would need atleast 2 cores, there's also a systemd slice configuration on HC setups for gluster, that limits CPU allocation to 1/3 of available cores in case of contention. RAM requirements would be workload specific. In general 16GB RAM is sufficient for gluster.

--
Chris Adams <cma@cmadams.net>
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