Determining the number of ESX host CPU licenses required by a server

Details

This article provides information on determining the number of ESX host CPU licenses required by your server based on the number of CPU sockets.

Solution

Licenses are tied to each CPU socket or package, not by CPU core.
 
You can determine how many ESX CPU licenses an ESX Server requires by running this command at the ESX host console:

cat /proc/vmware/sched/ncpus

The output appears similar to:
 
 8 logical
 8 cores
 2 packages

 
The number of packages indicates the number of CPU licenses you need.

Based on VMware KB 1002629
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