vcix-dcv-design math – Get admission control percentage

VMware are clear about the importance of setting admission control on vSphere clusters, and the preference of using the percentage calculation where possible
A simple formula will help calculate for heterogeneous cluster

 

For example I have a 12 node vsphere cluster and want to tolerate the loss of 4 hosts

100 / <number of hosts in cluster> x <number of hosts that can fail>

100 / 12 x 4 = 33.3%

 

To calculate the GHz and GB resources to percentage see here

*all hosts have the same cpu/memory configuration

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