Lost File System on SCSI Hard Drive

My SCSI hdd was the slave in a windows NT machine. The Master drive was an ide. I had to put Win 98 on the pc. I did and fdisk on the ide and tried to install 98 but there were errors so during a scandisk I had it fix the errors. I may have done thesame on the SCSI during the scandisk and the HDD is now unreadable. The scsi was NTFS. But now when I put it in an NT machine it is telling me that the disk is there but that it needs to be formatted. This is in an NT machine mind you. Any Ideas?