Adding additional CPU Licenses to host

[skroesen]

I have a 4 socket host, licensed with Enterprise Plus and 384G of RAM.  Server owner added an additional 128G of RAM to the host.  From my understanding of the new licensing model I need to add an additional 2 CPU licenses to the host to take full advantage of the newly added memory.  I cannot find where/how to do this.  Any assistance on this would be appreciated.

[a_p_]

The vRAM is pooled in the vCenter Server instance. You don't need to assign the licence key to a specific host.

André

[weinstein5 · Accepted solution]

The  vRAM licensing is not linked to the physical memory in the ESXi host but to the virtual memory assigned and used by the VMs - this document will geive you the information on how vRAM and how to check it - http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=200093...

depending on your environment - if you have vCenetr you woudl add it to your vCenter server - uf you are running a standalone ESXi host you would use the vSphere client and go to the licensing features in the configuration tab

[skroesen]

So if I understand correctly...

In our environment we have a number of 2 socket servers with 96G of RAM, each using 2 CPU licenses of Enterprise Plus.

This host with 4 sockets and 512G of RAM will utilize the unused/available vRAM entitlements of the 2 socket servers since they only have 96G of RAM and 2 licenses (worth 192G total)

[a_p_]

Exactly, vRAM is pooled by license type. Only powered on VM's are taken into account.

André