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What’s new in vSphere 6.0 – Fault Tolerance Quick Peek

February 5, 2015 Shady ElMalatawey 2

As VMware launched vSphere 6.0 yesterday, many of us waited to see the rumors, or the features seen in beta versions, to be true or not. For me, one of the most waited features was the new Fault Tolerance feature. New FT feature now supports 4 vCPUs and 64GB of RAM on non latency-sensitive VMs. As stated by VMware: “It can handle nearly 90% of total workloads”. So, is it the only difference between FT in vSphere 5.x and vSphere 6.0? The answer is absolutely NO. In vSphere 5.x, FT was based on a technology called vLockstep, which keeps the Primary and Secondary VMs in constant synchronization. When a x86 instruction is sent to the Primary VM, it’s copied and sent to the Secondary […]