Can’t VMotion VM error

Problem:

When trying to VMotion a VM in ESX 2.5.3, a error message comes up in the validation check "Unable to migrate from host: Virtual machine as CPU and/or memory affinities configured, preventing VMotion."

Solution:

There is a config file for VirtualCenter 2.1 called vpxd.cfg located in the VirtualCenter server's "C:\Documents and Settings\All Users\Application Data\VMware\VMware VirtualCenter. Search for </vmcore>, and add the following lines between </vmacore> and </config>.

<migrate>

<test>

<AffinityNotConfigured>false</AffinityNotConfigured>

</test>

</migrate>