Enable vSphere FT

Before you enable vSphere FT for a VM, a VMkernel port needs to configured to support Fault Tolerance Logging. You can do this using vSphere Web Client:

1. Select your ESXi host from the inventory and go Manage > Networking > VMkernel adapters. Select the VMkernel port and click the Edit settings icon:

edit vmkernel port

2. Under Enable services, select the Fault Tolerance Logging check box and click OK:

enable ft logging

3. Do the same action on other ESXi hosts in the cluster.

After you’ve enabled Fault Tolerance Logging, you must enable FT on a VM using vSphere Web Client:

1. Shut down the VM.

2. Right-click the VM from the inventory and select All vCenter Action > Fault Tolerance > Turn On Fault Tolerance:

turn on fault tolerance

3. If presented with the warning window, click Yes:

turn on fault tolerance warning

After the process is completed, review the information in the Summary tab of the VM:

fault tolerance information

Notice that the Host value indicates the host on which the primary VM is located, while the Secondary Location indicates the host on which the secondary VM is located.

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