At a client of mine, the former administrator left me a server with a software mirror. Allthough the hardware supports a hardware mirror. Because of the lack of resources, the server is verry slow. alot of CPU power is used for the software array. I would like to turn on the hardware array. (Its a windows 2003 SBS server.) Trying so, i noticed this is not so easy. How do I make sure the systems boots from the hardware aray? The disks remain on the same controller. I broke the mirror, rebooted, enable the raid function, configure the mirror, and copy one disk to the other. but how do i make windows boot from that array. It wont at this stage :s. (I'm on a testing envirenment offcourse). I also made sure i installed the latest drivers for the controler. Windows boots, but when it moves from the dos view to the windows view it results in a blue screen with inaccessible boot device. Did anyone have any luck trying this? driver for the controler is adaptec hostraid U320