StorageMojo » Everything You Know About Disks Is Wrong:
Which do you believe?
Costly FC and SCSI drives are more reliable than cheap SATA drives.
RAID 5 is safe because the odds of two drives failing in the same RAID set are so low.
After infant mortality, drives are highly reliable until they reach the end of their useful life.
Vendor MTBF are a useful yardstick for comparing drives.