Enabling the VMware vSphere Hot-plug CPU & Hot-Add RAM Feature

Enabling the VMware vSphere Hot-plug CPU & Hot-Add RAM Feature

VMware vSphere’s hot-add Memory and hot-plug CPU functions allow you to add the CPU and Memory while virtual machine is up and running. It will help you to add the additional resources whenever required and no need to bring down the VM for each time. But you can’t remove the resources once you have added the VM while it’s running.

To enable the hot-plug CPU and Hot-add RAM on existing VM.

1. Login to the VMware vSphere Client and Halt the VM.

2. Right click the VM and edit the virtual machine settings.

3. Expand the CPU tab.

4. Navigate to CPU hot Plug option.

5. Select the “Enable CPU Hot Add” Box.

6. Same way you can configure for memory as well. Just enable the Memory Hot plug.




Reference: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2020993