Administration Guide › Managing Virtual Environments › VMware vSphere and vCenter Server › Hot-plug Support for VMs › Dynamically Add or Remove vCPU

Dynamically Add or Remove vCPU

You can dynamically add or remove CPU to VMs that have been provisioned. If hot plug is enabled for the VM, you can dynamically add vCPUs during runtime.

CA Virtual Assurance verifies the following VM properties:

• ESX license (ESX Level)
• Maximum supported vCPUs (ESX Level)
• Hot plug enabled (VM Level)

Examples

• If ESX license allows 8 CPUs (Enterprise Plus) AND Max Support vCPUs is 8 AND Hot Plug is DISABLED then you can add: 1, 2, 4, 8 CPUs
• If ESX license allows 8 CPUs (Enterprise Plus) AND Max Support vCPUs is 8 AND Hot Plug is ENABLED then you can add: 1, 2, 3, 4, 5, 6, 7, 8 CPUs

To add vCPU

1. Click Resources.

   The Resources page appears.

2. Open the Explore pane.

   Available groups, services, and systems appear.

3. Find and right-click a virtual machine on the Explore pane, or click the Quick Start tab, and select Add/Remove vCPU.

   The Modify vCPU dialog appears.

4. Adjust the number of CPUs according to your needs.

   A message prompts for confirmation.

5. Click Ok.

   A message appears confirming the modification.

   Note: To remove vCPU, the virtual machine must be turned off.