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High Availability Network Fundamentals Chris Oggerino
Publisher: Cisco Press

It is different from the Vmotion. Cisco ASA acts as both firewall and VPN device. Cisco ASA stands for Cisco Adaptive Security Appliance. After the installation and the configuration of the base operating system and some fundamentals components, we can proceed with the installation of the High Availability Extension and the basic cluster setup. Later chapters of this guide will describe the specific technologies you can use to improve the availability and recoverability of your messaging system and its related business services; first, though, we have to start with an explanation of the causes of downtime, the general classes of availability Chapter 3: Availability Building Blocks: High Availability and Business Continuance. When doing vmotion a running guest is migrated from one ESX host to another ESX host. This article explains how to setup and configure high availability (failover) between two Cisco ASA devices. I don't mean to beat a dead horse but I wanted to discuss further why MTBF and MTTR are important concepts when designing a high-availability network using redundant components. In order to use a storage system beyond niche applications, it has to be able to scale up to full high availability with no single point of failure. The first step, naturally enough, is to gain an understanding of the fundamentals of Exchange protection. But it's cool that you actually put some numbers with it!!! Tools for Building Robust Data Centers. VMware VSphere High Availability (HA) is a super cool feature. A nice readup is "high availability network fundamentals" by Cisco. If you are implementing a HA cluster and have never considered the need of redundant power supply units or high-quality network cables, for example, you are probably wasting your money. By Charles Bell, Mats Kindahl, Lars Thalmann. Through the next points we will . Mathematics Behind the If you are interested in reading more about these types of calculations there was a good Cisco Press book on the subject written back in 2001 by Chris Oggerino titled “High Availability Network Fundamentals” ISBN 1587130173.