Hello,
I'm having some serious issues with the performance of my virtual machines. I've been on a wild goose chase recently running all over the place but I think I've foudn the problem.
My datastores inside of ESXi are showing disk read/write latency times of <20ms at most, but my VMs (windows server 2008/2012) are showing in-OS disk response times (as shown in resource manager) of between 100 and 700 ms. Suffice it to say, everything is grinding to a halt.
Does anyone know why the VMs may show such high disk queue lengths, but vmWare doesn't show this, and how I can start getting to the bottom of this?
