[Dirvish] Backup Drive Failure

Przemek Klosowski przemek.klosowski at gmail.com
Fri Nov 5 13:22:53 UTC 2010


On Fri, Nov 5, 2010 at 9:06 AM, Rich Shepard <rshepard at appl-ecosys.com> wrote:

>   I believe that all drive manufacturers have some capacities or
> technologies that do not hold up well.

Absolutely true--and of course they themselves know well which drives
are holding up well and which they aren't. Sadly, they don't share
this information with their customers. Large customers like Google
have internal tracking programs; there was a fascinating paper from
Google few years back where they showed statistics on various failure
scenarios, which dispelled several myths, e.g. by showing that drive
temperature is not a significant factor unless it's extreme. On the
other hand, they showed that a single failed sector is a significant
predictor of impending failure.

Unfortunately, Google didn't share the manufacturer/model statistics.
I wish there was a website collecting independent, unbiased failure
stats on good and bad disk units. I have some favorites: for instance
a 16-year-old Quantum Bigfoot running my firewall at home.


More information about the Dirvish mailing list