The data I am worried about is on the my 2 x 200 GB Seagate drives that I had set up in RAID 1 on the same machine. The BIOS RAID diagonostic detects the two drives fine, but I can't get into Windows ...
RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives (SSDs) to protect data in the case of a drive failure.