I have a Dell Poweredge SC1425 server with a raid1 consisting of two 80GB SATA drives on the onboard RAID controller. We're running out of space, so I purchased two 640GB SATA drives. I need to transfer everything to the newer, larger drives, so I took an 80gb drive out, thus breaking the raid. Then I added the 640GB drive in, pressed CTRL A to get into the raid config and told it to treat the 640 as the spare drive. It rebuilt the raid onto the 640GB drive just fine. I then replaced the other 80GB drive with the other 640GB drive. Again, worked fine. But when I boot into Windows, (server 2003), it only shows a total of 80GB worth of partitions. I've tried going into disk management, but I can't see any of the free space after the 80GB. I've also tried Acronis Partition Manager for servers, same thing. Any ideas?