If the hardware specs are the same (same brand processor, Intel or AMD; same boot disk controller, etc), then it should boot up fine. However, unless you run a tool to change the SID of the ghosted machine, you will have issues on the network with two machines with the same SID. Thank you very much. These systems are going to be geographically isolated so i suppose i would not have that issue. And both wouldnot communicate each other. Anyways Thank you for your support, I really appreciate it. cheers! Mohan.