Our new CCIE Data Center Written course has been released. For the All Access Pass members it's already available in your members site account. Below are some sample from the new course.

Nexus 5000 & 2000 Hardware Architecture:
http://www.youtube.com/watch?v=WyoPUCIzzgc

NX-OS Fibre Channel over Ethernet (FCoE)
http://www.youtube.com/watch?v=yGycLnWNDxQ

UCS :: LAN Modes and Behaviors :: Part 1
http://www.youtube.com/watch?v=mxaVLfH6xlE

Here is the playlist: