Book Image

Implementing Cisco UCS Solutions

Book Image

Implementing Cisco UCS Solutions

Overview of this book

Cisco Unified Computing System(UCS) provides unique features for the contemporary data centres. Cisco UCS is a unified solution that consolidates computing, network and storage connectivity components along-with centralized management. Cisco UCS reduces TCO and improves scalability and flexibility. Stateless computing blade server's design simplifies the troubleshooting, and Cisco-patented extended memory technology provides higher virtualized servers consolidation results. A hands-on guide to take you through deployment in Cisco UCS. With real-world examples for configuring and deploying Cisco UCS components, this book will prepare you for the practical deployments of Cisco UCS data centre solutions. If you want to learn and enhance your hands-on skills with Cisco UCS solutions, this book is certainly for you. Starting with the description of Cisco UCS equipment options, this hands-on guide then introduces Cisco UCS Emulator which is an excellent resource to practically learn Cisco UCS components' deployment. You will also be introduced to all areas of UCS solutions with practical configuration examples. You will also discover the Cisco UCS Manager, which is the centralized management interface for Cisco UCS. Once you get to know UCS Manager, the book dives deeper into configuring LAN, SAN, identity pools, resource pools, and service profiles for the servers. The book also presents other administration topics including Backup, Restore, user's roles, and high availability cluster configuration. Finally, you will learn about virtualized networking, 3rd party integration tools and testing failure scenarios. You will learn everything you need to know for the rapidly growing Cisco UCS deployments in the real-world.
Table of Contents (19 chapters)
Implementing Cisco UCS Solutions
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Single fiber channel failure and recovery on Fabric Interconnects


In virtualized environments, SAN connectivity is very crucial for hypervisors as a shared SAN is a critical component for advanced virtualization features, such as migrating and then running virtual machines between different hosts. A problem with the connectivity of the SAN array can also cause issues with the SAN boot.

SAN could be connected to Fabric Interconnects directly or through a northbound Nexus, MDS, or third-party switch. Proper connectivity between Fabric Interconnects and SAN storage processors or Fabric Interconnects and SAN fabric switches is necessary. SAN connectivity is also configured as redundant. However, unlike Ethernet, where a northbound vPC that is using a cross switch connection can protect against a complete switch failure, the connectivity between SAN switches and Fabric Interconnects can only be a straight connection. It is, however, possible to create a Fiber Channel port channel for protection...