I have a working Dell Poweredge 2650 with 2 x Xeon 1.8Gig processors, 5 x 36GB hard disks, running Windows 2003 Server. I have recently purchased a newer Poweredge 2650 with the same configuration except that it has 2 x Xeon 3Gig processors. I would like to transfer the OS and data from the ''old'' (slower) 2650 onto the ''new'' (faster) 2560 to improve general performance. The idea is to do it in one day, starting with the OS and data on the old 2650 and finishing the day with the OS and data running on the new 2650. Both 2650s have the same PERC 3/Di controller. The drives on the old 2650 are set up as C: for the OS (2 disks, 36GB) and D: for data (3 disks, 72GB). I have been told that I should be able to swap the drives from the new 2650 into the old machine, one at a time, and they will be copied - ie remove the drive from position X on the old 2650 and replace it with the drive from position X on the new 2650. The drive should then be ''repaired'' by the old 2650, as it will treat the drive as a replacement for a failed drive. Once the drive has been ''repaired'', remove it and put it back in its place in the new 2650. Replace the original drive in the old 2650. Repeat the steps for each of the other 4 drives. Once all drives have been copied, the new 2650 should be able to boot up as an identical copy ofthe original 2650. I have also been told that I will need to set up/rebuild the array(s) on the new 2650 before it will boot. Can anybody give me clear directions as to how to proceed to transfer the OS and data from the old 2650 to the new 2650? I am planning to do it on a Sunday when the system is not being used. Realistically, can the process be completed in one day? Will my original OS and Data be at risk doing it this way? Daniel