Book Image

Implementing Cisco UCS Solutions - Second Edition

By : Anuj Modi, Prasenjit Sarkar
Book Image

Implementing Cisco UCS Solutions - Second Edition

By: Anuj Modi, Prasenjit Sarkar

Overview of this book

Cisco Unified Computer System (UCS) is a powerful solution for modern data centers and is responsible for increasing efficiency and reducing costs. This hands-on guide will take you through deployment in Cisco UCS. Using real-world examples of configuring and deploying Cisco UCS components, we’ll prepare you for the practical deployments of Cisco UCS data center solutions. If you want to develop and enhance your hands-on skills with Cisco UCS solutions, this book is certainly for you. We start by showing you the Cisco UCS equipment options then introduce Cisco UCS Emulator so you can learn and practice deploying Cisco UCS components. We’ll also introduce you to all the areas of UCS solutions through practical configuration examples. Moving on, you’ll explore the Cisco UCS Manager, which is the centralized management interface for Cisco UCS. Once you get to know UCS Manager, you’ll dive deeper into configuring LAN, SAN, identity pools, resource pools, and service profiles for the servers. You’ll also get hands-on with administration topics including backup, restore, user’s roles, and high availability cluster configuration. Finally, you will learn about virtualized networking, third-party integration tools, and testing failure scenarios. By the end of this book, you’ll know everything you need to know to rapidly grow Cisco UCS deployments in the real world.
Table of Contents (20 chapters)
Title Page
Credits
About the Authors
www.PacktPub.com
Customer Feedback
Preface

VEM implementation


The following are some important features of VEM:

  • It is a virtual line card
  • It is embedded in the vSphere host (hypervisor)
  • It provides each VM with dedicated switch ports
  • It is the switch in every host

Here, we run the ESXi package manager to show the VIB file used to implement the VEM. If you list the processes, you will also see the VEM data path agent (vemdpa) that communicates with the VSM (running in the user mode).

Finally, the hypervisor driver (running in the kernel mode) performs packet switching.

Note

vCenter can operate without too much regard for the VEM. Typically, the only reason to go there (via SSH) is for troubleshooting purposes.

The esxupdate utility is no longer supported, but we can use it here to illustrate a point.