Just in case, I am posting this as new. I am currently having a problem with our RAID 5 on our Power edge 2500. We lost one drive and nothing worked anymore (Windows would not boot). The Tech just left after installing the new drive and he did not seem to know anything about activating the drive. I myself am not completely sure how to do it (all I know is that it is critical that I recover the data on the second partition). With the new drive in, the new drive has a steady on light (green) with the other two flashing (green) but no other activity. He stated Dell support told him that it is rebuilding and will take another 1/2 hour. However, there is no other indication. How do I mount the drive into the RAID Stack and how do I initiate and track the rebuild??? We are using the PERC 3 Di on a Win 2K operating system (which does not boot...)