I normally setup larger clusters than a 2-node cluster with shared storage, but we have built a cluster specifically for hardware based GPU's for a few VMs and thus new hardware and just a 2-node cluster with backend shared SAN storage.
The 2 hosts have 384GB RAM and dual 10 core procs.
Total VM count = 12 with total vCPU assigned equaling 36 Total VM cpu utilization is around 5% on each, and 35% ram on each.
My question is:
Is there a preference or best practice on the host admission policy? Right now I have it set to "cluster tolerates 1 host failure" but typically I would set cpu/ram percentages with larger clusters. However, when I do this regardless of setting (25/25, 15/15, 50/50) I end up with VM's showing "unprotected". Setting it back to a single host failure sets them all back to "protected".
Are there certain settings for HA and DRS to take into consideration when only dealing with a 2 host cluster?
The cluster is currently running on 5.1 but I don't think the options have changed since.