We just purchased a Dell PowerEdge 1750 with a RAID 5 controller, 3 76 gig 10,000 RPM SCSI drives. When I ran the Dell OpenMange cd I partitioned the drive at 40gb. Then once I installed 2003 Server I went into the Disk Manager and allocated the other 120ish gb to the d:. How do I know that the Raid 5 will work for the d: partition? Is there a way to test. The controller came with software but I am not 100% sure how to use it. Should I have allocated the 120 gb using its software as a Virtual drive? Or did it do the same thing buy allocating it using disk manager?