64-bit OS very poor performance in ESX 3.5
Posted on 2009-02-20
I have an HP ML350 G5 lab server that is running ESX 3.5 with 2 X 3ghz dual cores, 16GB RAM, 2TB storage (SATA). The bios is the most current avaialbe and the VT option is enabled in the BIOS. The server hardware is all on the ESX hardware compatibility list.
I am having terrible performance issues when running 64-bit Windows OS. Server 2008 64-bit, or server 2003 64-bit. My 32-bit OS have no issues. I have tried throwing memory at the problem but of course it is of no help.
Does anyone have any information about 64-bit windows issues on ESX? Are there any troubleshooting tools that will help me narrow down the issue?
Thank you in advance