23. Configuring VMware vSphere Fault Tolerance

In this Lab you will learn about how to enable the vSphere FT logging, how to activate the vSphere FT protection, test the vSphere FT protection, disable and turn off vSphere FT protection.

VMware Fault Tolerance provides continuous availability for virtual machines by creating and maintaining a Secondary VM that is identical to, and continuously available to replace, the Primary VM in the event of a failover situation. You can enable Fault Tolerance for most mission critical virtual machines. A duplicate virtual machine, called the Secondary VM, is created and runs in virtual lockstep with the Primary VM. VMware vLockstep captures inputs and events that occur on the Primary VM and sends them to the Secondary VM, which is running on another host. Using this information, the Secondary VM’s execution is identical to that of the Primary VM. Because the Secondary VM is in virtual lockstep with the Primary VM, it can take over execution at any point without interruption, thereby providing fault tolerant protection.

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