John Arrasjid (S4) is a Principal Architect at VMware, specializing in Enterprise Private Cloud (vCloud), business continuity, disaster recovery, and virtual datacenter architecture design, and is the lead architect for the vCloud Architecture Design Toolkit (vCAT). He has over 20 years of IT and consulting experience. John regularly presents at conferences (VMworld, VMware Partner Exchange, USENIX Annual Technical Conference, and USENIX LISA). John is currently serving as Vice President on the USENIX Board of Directors and has published three books in the SAGE Short Topics Series: Cloud Computing with VMware vCloud Director, Foundation for Cloud Computing with VMware vSphere 4, and Deploying the VMware Infrastructure. John is a founding member of VMware bands Elastic Sky and The Hypervisors. John holds both VCP and VCDX (#001) certifications. John has a Bachelor of Science in Computer Science from SUNY Buffalo, NY.