Highly Reliable Systems: Removable Disk Backup & Recovery


SATA Drives as reliable as Fiber Channel


[SATAvsFCStudy.pdf]

Customers replace disk drives at rates far higher than those suggested by the estimated mean time between failure (MTBF) supplied by drive vendors, according to a study of about 100,000 drives conducted by Carnegie Mellon University.

The study, presented last month at the 5th USENIX Conference on File and Storage Technologies in San Jose, also shows no evidence that Fibre Channel (FC) drives are any  more reliable than less expensive but slower performing Serial ATA (SATA) drives.