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Table Of Contents
Procedure
1 In the vSphere Client, select the Hosts & Clusters view.
2 Right-click the fault tolerant virtual machine and select Fault Tolerance > Turn Off Fault Tolerance.
Fault Tolerance is turned off for the selected virtual machine. Any history and the secondary virtual
machine for the selected virtual machine are deleted.
Disable Fault Tolerance in the vSphere Client
Disabling vSphere Fault Tolerance for a virtual machine suspends its Fault Tolerance protection, but
preserves the Secondary VM, its configuration, and all history. Use this option if you might need to re-
enable Fault Tolerance protection in the future.
Prerequisites
Launch the vSphere Client and log in to a vCenter Server system.
Procedure
1 In the vSphere Client, select the Hosts & Clusters view.
2 Right-click the fault tolerant virtual machine and select Fault Tolerance > Disable Fault Tolerance.
Fault Tolerance is disabled for the selected virtual machine. Any history and the Secondary VM for the
selected virtual machine are preserved and will be used if the feature is re-enabled.
What to do next
After you have disabled Fault Tolerance, the menu option becomes Enable Fault Tolerance. Select this to re-
enable the feature.
Migrate Secondary VM in the vSphere Client
After vSphere Fault Tolerance has been turned on for a Primary VM, you can change the host its associated
Secondary VM resides on by migrating it.
Prerequisites
Launch the vSphere Client and log in to a vCenter Server system.
Procedure
1 In the vSphere Client, select the Hosts & Clusters view.
2 Right-click the fault tolerant virtual machine and select Fault Tolerance > Migrate Secondary.
The Migrate Virtual Machine wizard opens with a Migration Type of Change Host selected.
3 Click Next.
4 Select the destination host that you want to migrate the Secondary VM to and click Next.
5 Select a migration priority and click Next.
6 Review your selections on the Summary page and click Finish.
The Secondary VM associated with the selected fault tolerant virtual machine is migrated to the specified
host. Note that the Primary VM can always be migrated using the Migrate command in its context menu.
Test Fault Tolerance Failover in the vSphere Client
You can induce a failover situation for a selected Primary VM to test your Fault Tolerance protection.
This option is unavailable (grayed out) if the virtual machine is powered off.
Chapter 27 Providing Fault Tolerance for Virtual Machines
VMware, Inc. 397