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.
Tag: Fault Tolerance
Jul 19 2011
Aug 13 2009
On the heals of the CPU Scheduler white paper comes another great one entitled VMware vSphere 4 Fault Tolerance: Architecture and Performance. If you plan on using the Fault Tolerance feature be sure and give this one a read. Also check out my many links on Fault Tolerance.