I've never run Windows on OracleVM, so I have no idea how bad the performance is, but according MOS documents 468634.1 and 464756.1 it is significantly slower than on native hardware. Regards, Brandon From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Tim Hall Sent: Friday, October 01, 2010 10:14 AM To: LS Cheng Cc: Paul Drake; jeremy.schneider@xxxxxxxxxxxxxx; zhuchao@xxxxxxxxx; ORACLE-L Subject: Re: T3 processor/system & Oracle License Hi. Oracle VM supports hard partitioning on x84 hardware, as explained here: http://wiki.oracle.com/page/Hard+partitioning As mentioned previously, since Windows is installed inside the VM and the VM is limited to use specific CPUs, the licensing of Oracle is based on the CPUs the VM can see, not all the CPUs on the server. Cheers Tim... ________________________________ Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it.