From the course: VMware vSphere 6.5 Essential Training Part 2

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Fault tolerance

Fault tolerance - vSphere Tutorial

From the course: VMware vSphere 6.5 Essential Training Part 2

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Fault tolerance

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- [Instructor] In this video, I'll explain vSphere Fault Tolerance. Now, Fault Tolerance can be used to provide 100% uptime for critical virtual machines. And Fault Tolerance has undergone some significant changes in vSphere 6 in that it actually protects virtual machine data. So we can have no data loss, no transaction loss or TCP connection loss. The primary virtual machine is protected by mirroring it to a secondary virtual machine that's running on another ESXi host, and this secondary VM is kept exactly the same as the primary so that we can easily failover to the secondary with no downtime. If the primary virtual machine fails, the secondary takes over and becomes the primary, and then a new secondary VM is spawned on a different host to protect that new primary VM. A secondary datastore can also be selected to store the files for the secondary VM, protecting our virtual machine from data loss should the primary virtual machine's datastore fail. Fault Tolerance supports up to…

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