You can survive the migration from Windows vCenter server

The promised land of VCSA - time to start packing

Up until relatively recently, VMware's vCenter was a Windows-only affair. With version 5 came the VCSA (vCenter Server Appliance) based on a hardened Linux installation. It essentially left behind the legacy issues around management and patching (and all manner of other issues) that impact Windows. The next major release of vSphere is to be the last that supports a vCenter sat on Windows."