Book Image

Implementing VMware vCenter Server

By : Kostantin Kuminsky
Book Image

Implementing VMware vCenter Server

By: Kostantin Kuminsky

Overview of this book

Table of Contents (16 chapters)
Implementing VMware vCenter Server
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating a vSphere HA cluster


Before HA can be enabled, a cluster itself needs to be created. To create a new cluster, right-click on the datacenter object in the Hosts and Clusters view and select New Cluster... as shown in the following screenshot:

The following prerequisites have to be considered before setting up a HA cluster:

  • All the hosts must be licensed for vSphere HA.

    Note

    ESX/ESXi 3.5 hosts are supported for vSphere HA with the following patches installed; these fix an issue involving file locks:

    ESX 3.5: patch ESX350-201012401-SG and prerequisites

    ESXi 3.5: patch ESXe350-201012401-I-BG and prerequisites

  • At least two hosts must exist in the cluster.

  • All the hosts' IP addresses need to be assigned statically or configured via DHCP with static reservations to ensure address consistency across host reboots.

  • At least one network should exist that is shared by all the hosts, that is, a management network. It is best practice to have at least two (see Chapter 2, Managing ESXi Hosts, for more...