I have a HP/Compaq Proliant ML350 w/ 3 drives set for RAID 5. I just added a 4th drive and used the HP Array utility to expand the array. The array expansion finished; however, the HP utility still shows the disk as a separate "logical" drive ("drive 1") and the original array as "drive 0". In Windows 2003, before I added the new drive I had one BASIC disk (disk 0) and two partitions: c: (system drive) and d: (data and apps) When I access the disk management utilities in Windows I now see a new BASIC disk (disk 1) with unallocated space. However, it seems that my only option with the new space is to create a new partition on disk 1. Instead, what I really want to do is add this additional capacity to each of the partitions on disk 0. What am I doing wrong? How do I have this unallocated space be part of the same partition? From previous posts it seems that the diskpart utility might do the trick, but somehow I first need Windows to recognize the unallocated space as part of disk 0, not a separate disk.