Knowledge Base / KB40: INSUFFICIENT CPU CAPACITY

This error occurs when the CPU resource reservations of the virtual machine exceed the available capacity on the target host and vMotion of a virtual machine fails.

Troubleshooting:

To resolve this issue:

  1. In the vSphere Client, right-click the virtual machine and click Edit Settings.
  2. Click the Resources tab.
  3. Set the CPU reservations to a value lesser than the capacity of the ESX/ESXi host.

as explained in the following vmware knowledge base article.

Posted in: VMware vSphere