VMware

Enable Hot Add Hot Plug VM VMware vSphere Web Client

Enable Hot Add Hot Plug

In this blog, I will provide you steps on how to increase VMware vSphere VMs RAM or CPUs (Enable Hot Add Hot Plug) without shutting down VMs. We typically add extra RAM and plug additional CPUs.

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1- Right-click on Virtual Machine the one you want to increase ram, CPU, and then click Edit Settings.

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vmware vm edit settings

2- By default CPU Hot Plug and Memory Hot Plug features are disabled.

Enable Hot Add Hot Plug

First, we need to enable them, so we need to power off of our virtual machine.

3- Right click on VM, select Power option and click Power off. (I am testing in my home lab if you are working in an environment then please do proper shutdown your virtual machine).

vmware vm power off

4- Click yes to confirm Power Off.

vm confirm power off

How to change VM configuration

5- Now VM is shutdown, right click on VM and select Edit Settings.

vmware vm edit settings

Before enabling Hot-Add/Hot-Plug, it’s a good time to know about requirements and limitations.

Requirements and limitations Please visit VMware

6- Virtual Machine Edit Settings, select the Virtual Hardware tab, and select checkbox to enable CPU Hot Plug, Memory Hot Plug, and then click ok.

Note: – These features will allow adding more RAM (Memory Hot Add) and vCPUs (CPU Hot Plug) without shutting down the VM. In this way, there is no downtime if you need just to add some more power to your VMs.

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vm edit settings virtual hardware

7- Select Virtual Machine and then select Power On button.

vmware vsphere client

8- Now VM is Power On, right click on VM and select Edit Settings.

vmware vm edit settings

Windows Server 2012

9- Let’s start with Windows Server. Here we can change VM configuration in Windows Server 2012.

Now CPU is 1 and Memory is 2 GB.

vm edit settings virtual hardware

10- I increased the CPU 1 to 2 and Memory from 2 GB to 4GB and then click ok

vm edit settings virtual hardware

11- Windows Server System properties.

system properties

Jamil Parvez

Jamil Pervez works as a Network Administrator, based in Kuwait with a Primary focus on Microsoft technologies. Microsoft Certified MCSE, MCTP, MCITP, CCNP, CCIP, CCVP with 20 years of experience in administering Windows Servers, Exchange, VMWare, Veeam B&R, Veritas BackupExec.

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