I have a Dell server with PERC controller setup with RAID 5. I added a drive as I ran out of space, but I cannot expand RAID volume onto new drive. I see posts that say I must clone current volume onto external storage, add new drive and create new expanded volume and copy image back to new volume. Problem is, I have not seen any software I can clone RAID 5, Windows Server 2003 onto external USB drive. Any suggestions would be appreciated.