On Wednesday I attended the VMFS3 session entitled “VMware vStorage VMFS-3: Architectural Advances since ESX 3.0”. It was a very interesting little session discussing some of the under-the-covers work through the evolution of VMFS3.
However, why am I blogging about it now? Well one thing jumped out at me during the presentation. The speaker (I think it was Satyam Vaghani), introduced a slide which showed the testing that they were doing on the next implementation of VMFS3 (3.45). To be honest I can’t remember the exact detail of the slide (and unfortunately the uploaded version currently on the VMworld site doesn’t have the same slide), but what I do recall is the upper limits of the testing. The slide was showing the effects of new locking mechanisms. It showed the performance of 8 hosts connecting to 512 VM on 1 VMFS LUN! Holy smoke. Ka-Pow. Imagine being able to do that.
What sort of effect would that have on your datastore provisioning? Time to re-think your VDI solution? I can’t wait 🙂