VMware vSphere HA (High Availability) is a functionality that is used to configure a cluster of ESXi hosts to respond to an unplanned downtime event and ensure the availability of the virtual machines that were running on them, with very minimal downtime possible. Although that was a very simple definition, there is more to what vSphere HA can do in terms of providing high availability to the virtual machines running on the HA protected hosts. It can monitor the guest operating systems and the applications running inside of a virtual machine and then decide to restart the affected virtual machine in an effort to reduce the downtime of a service due to an affected guest operating system hosting the service or a nonresponsive application corresponding to the service. Having said all that, it is important to understand that even though HA is configured on a cluster of ESXi hosts, it only provides high availability for the virtual machines and not for the hosts. It cannot start...
VMware vSphere 5.5 Cookbook
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VMware vSphere 5.5 Cookbook
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Overview of this book
Table of Contents (22 chapters)
VMware vSphere 5.5 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Upgrading to vSphere 5.5
Performing a New Installation of vSphere 5.5
Using vSphere Host Profiles
Using ESXi Image Builder
Using vSphere Auto Deploy
Configuring vSphere Networking
Creating and Managing VMFS Datastores
Managing iSCSI and NFS Datastores
vSphere Storage Policies and Storage I/O Control
Creating and Managing Virtual Machines
Configuring vSphere HA
Configuring vSphere DRS, DPM, and VMware EVC
Upgrading and Patching Using vSphere Update Manager
Using vSphere Management Assistant
Monitoring the Performance of a vSphere Environment
Index
Customer Reviews