How many more VMs can you fit into a Cluster, Resource Pool or Host?

Given the speed at which most admins are adding new VMs to their environment ("vm sprawl"), every admin has to figure out where to deploy the new VMs. Simply guessing about resource availability will lead to performance problems and downtime. What I am proposing here is a simple 4 step process you can use to determine how many more VMs you can fit into a Cluster, Resource Pool or a host. Here it goes

1. Select a cluster, resource pool or a host
2. Get info on available memory, storage, cpu, disk i/o and net i/o
3. Calculate an average VM footprint in the cluster, RP or host in terms memory, cpu, storage, disk i/o
4. Apply average VM footprint to every resource type to see which resource you will run out of first.That’s how many more VMs you can fit into host, cluster or resource pool

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