I actually used this on a HP DL360 (with a RAID set) through ILO over a WAN connection. Worked like a charm!
Parted Magic is a ~30mb LiveCD/USB with it’s only purpose being partitioning hard drives. Although GParted and Parted are the main programs, the CD/USB also offers programs like partimage, TestDisk, fdisk, sfdisk, dd, ddrescue, etc…
Read more and download here
Backup copy (//090102) pmagic-3.4.iso.zip