Read this guide to learn how to enable CPU and memory hot plug on VMware VMs. This guide explains how to enable the feature in vCenter.
What is CPU and Memory Hot Plug?
Have you ever tried to modify the virtual CPU or memory of a VM while it was powered on and found the options were grayed out?
The reason these options are not available is because CPU and memory hotplug is not enabled on the VM.
CPU and memory hotplug is a feature that allows you to modify the CPU or memory assigned to a VMware VM while the VM is turned on.
Procedure to activate the function
- Log in to vCenter, shut down the VM, and then open the edit page.
- To edit a VM in vCenter, search for the VM and left-click on it. Then, on that VM, act menu, selection Edit Settings.
- Then in the VM Edit Settings To enable CPU memory hot plug on a page, expand CPU. Then check the box next to it. Enable CPU Hot Add.
Close the CPU Details menu.
- To enable memory hot plug, expand Memory and scroll to select it. memory hot plug, And check make possible.
Finally, click OK to save your changes.
Once the changes are saved, start the VM. The option to modify CPU and Menory while the VM is on is now enabled.
conclusion
Enabling CPU and Memory Hot Plug on a VMware VM allows you to modify the virtual CPU or RAM of the VM while it is powered on. This is very useful in production where you want to add more resources to the VM but avoid downtime.
However, to utilize this feature, you need to enable: Enable CPU Hot Add and Memory Hot Plug You can scale those resources on the VM instantly.
We hope you’ve found this guide an easy way to achieve your goals! Our “Was this page helpful?” There is a request for feedback below.