With a help of our new SCSI data recovery complex, we pulled 100% of Microsoft Exchange databases from a Seagate SCSI drive belonging to British Curriculum International School. The kind of a failure was quite common for Seagate SCSI drives: SCSI controller shows “Medium Error”;  Drive Capacity is indicated as 0 (or in Linux logs the message “Read Capacity failed” can be seen), the drive serial number is displayed correctly in the diagnostic utilities.