David Stamen is a Technical Marketing Engineer and VCIX6.5-DCV working for VMware in the Cloud Platform Business unit. 

In his role, he covers vSphere Lifecycle. This includes the Installation, Patching, Upgrading and Configuration of vCenter Server and ESXi components.

David can be found blogging at http://blogs.vmware.com/vsphere http://davidstamen.com and on twitter via @davidstamen.