Raid Question

Newbe here…running Suse 10.3 on a sys that has a scsi 10tb Raid hooked to it. I can see the Raid in the partitioning tool in Yast but it won’t let me set it up as a drive. The starting and ending are both listed at 281650 and when I try to change this for the partition size it says the partition has to be within 281650 and 281650…the raid was formatted as NTFS and I want to reformat so I can see it as a file server in Suse…accessing it from a Win XP sys…and the local drive works fine…just can’t configure the Raid…any assistance is greatly appreciated.