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vSphere Fault Tolerance will soon support SMP

July 19th, 2011

Came across this session in the VMworld 2011 lineup - (BCO2874 vSphere High Availability 5.0 and SMP Fault Tolerance - Technical Overview), according to the description the Fault Tolerance feature which previously only supported VM’s with a single vCPU will soon support vSMP. Providing this support has been a major development challenge for VMware as it is not an easy task to keep multiple CPUs in sync via lockstep. In fact I talked to VMware about it at the vSphere 5 launch and they said they were working with the CPU vendors to see if they could make it easier for them to do this. Well looks like they finally found a way, it will be interesting to see what they come up with, sign up for the VMworld session to find out more including a live demo. Since it’s not currently in vSphere 5.0 I’m guessing it may make it into a point release like vSphere 5.1.


Author: esiebert7625 Categories: News Tags: , ,
  1. July 19th, 2011 at 23:19 | #1

    Good catch Eric :-)

    I was waiting on someone to spot it, will be cool!

  2. Avram
    July 19th, 2011 at 23:39 | #2

    Of course it will. Now that we have the option (well, soon, I guess) we’ll be more inclined to want to use vSMP HA - which will of course increase our vRAM usage. Which means we can’t really use it.

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