Our Virtual environment is ESX3.5 Upd6 with VirtualCenter 2.5. The host in question has 128gb RAM, quad-quad core proc and uses FibreChannel SAN backend. One of the VMs on this host has Windows 2003 standard, with 1gb RAM, single Proc and first vDD of 25gb and second vDD of 40gb. In the last 3 days (after doing Shavlik patching on it...not to say it was Shavlik) the VM has been acting slow and often hangs with the following Windows message; Insufficient System Resources.
I checked the host resources on the cluster and there is lots of unreserved CPU and memory. No alerts. No events that show issues with the VM. ESXTop does not show any CPU or memory issues.
My guess is it is a Guest O/S issue but want to check with the forum first because the first thought everyone has is "it is a virtual problem because it is a virtual machine". How can I show them they are wrong? if I am wrong.