Enabling Fault Tolerance

Last Updated : Dec 01, 2022 |

About this task

Use this procedure to enable fault tolerance for virtual machines using the vSphere Client.

Before you begin

Ensure that you meet the following prerequisites:

  • The two servers with the same hardware configuration must meet the VMware Fault Tolerance prerequisites.

  • Locate the two servers, for example, two compatible with AE Services servers in the same rack.

  • Install ESXi of the same version, vCenter Server, and vCenter Client on both the servers.

  • Create a cluster and add two servers into the cluster.

For more information on installing VMware, vCenter Server, vCenter Client, creating a cluster, and adding servers to a cluster, see the VMware documentation.

Procedure

  1. Connect vSphere Client to vCenter Server using administrator credentials.
  2. On the vSphere Client, click the Hosts & Clusters view.
  3. Right-click the single virtual machine, and click Fault Tolerance > Turn on Fault Tolerance.

    You must enable the Fault Tolerance for one virtual machine at a time.

    After the Fault Tolerance is on, the selected virtual machine acts as a primary virtual machine and secondary virtual machine is established on the another host.