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Implementing VMware vCenter Server by Konstantin Kuminsky

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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:

Creating a vSphere HA cluster

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. ...

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