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VMware Fault Tolerance

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The Fault Tolerance (FT) functionality of VMware’s vSphere allows you to protect a virtual machine from hardware failures by cloning the VM on two separate hosts.

Fault tolerance - Fault tolerance continuity - step 1

 

Requirements

  • vSphere HA activated
  • Resource reservation equal to 100% of memory
  • VMware Tools installed
  • Same generation processors
  • 4 vCPUs maximum

 

Instructions

To activate Fault Tolerance, right-click on a VM and click Fault Tolerance and Turn On Fault Tolerance.

VM turn - Fault tolerance continuity

A configuration window will open, prompting you to make choices for the secondary VM.

  1. Select datastores: Select datastores to place the secondary VM disks and configuration files.
  2. Select host: Select a host for the secondary VM.
  3. Ready to complete: Review your selections and click FINISH to turn on fault tolerance.
Info

Your virtual machine is now protected by Fault Tolerance. Its icon will change, and "primary" will be added to its name.

Several operations are now available when you right-click your VM and choose Fault Tolerance.

Fault tolerance - Fault tolerance continuity - step 7

 

Go further

Browse all the VMware on OVHcloud guides.

Browse the rest of the OVHcloud US documentation for guides on our other products and services.

Learn more about VMware on OVHcloud on the OVHcloud US website.