Oracle Database Discussions

Hello to all
Last month I have been assigned an assignment to work on RAC. Our application is a data ware housing and we striving for performance. Our high management orders me to implement Rac for performance. I have started work on RAC. And submit my finding. I found that RAC is slower on VMware software
We have installed the oracle RAC software on the followings:
Two VM machines (with 4 GB ram each, 1 Processor each with hard drive space 50Gb each)
 Two Physical machines with following specs:
• Intel Core 2 Duo (2.0 GHZ)
• 2 GB ram each
• 80 GB SATA Hard Drive each
• One Shared Drive on network (SATA 80 GB)
• Two LAN card on each system (1 Giga bits each). One for private and other for public.
o VM Performance Issues
 We are facing following issues on VM machines:
• Slow I/O (Very slow loading and execution performance)
• CPU was on 100 % without any activity
• The VM machines were on a single server thus they were sharing the same physical hard drive and LAN cards

But today my Boss sends me an article in which claim that RAC is faster on VMWARE software instead of Physical machine. Now I have to answer to higher management. I could not understand what I said. Becoz during my experiment it perform very poor. Plz help me or suggest me what is your opinion. I’m waiting for your reply
Link of article
http://www.channelregister.co.uk/2009/05/08/oracle_vmware/ ?
Regards

Edited by: Oracle Studnet on May 11, 2009 3:01 AM