SATA drives support speeds up to 10,000 rpm and mean time between failure (MTBF) levels up to 1 million hours under an !!!EIGHT HOUR!!!, low-duty cycle.

SCSI drives support up to 15,000+ rpm and an MTBF of 1.4 million hours under a !!!24-hour duty!!! cycle

comparing SATA and SCSI is like apples and oranges. SCSI wins in speed and reliablity, you've got a NICE set of drives!!!!