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Customers change disk drives at rates far higher than those proposeed by the estimated mean time between failure (MTBF) supplied by hard drive (hdd) vendors, in accordance with a study of about 100,000 drives performed by Carnegie Mellon University.   The MTBF is basically the average amount of time between a hard drive (hdd) failure and repair to the next hard drive failure.  MTBF is a statistical measure, and as such, it can’t foresee anything for a single hdd unit. We can utilize that MTBF rating more precisely, however, to compute that if we have 1,000 such hard drives operating constantly in a data center, we can anticipate one to fail every 58 days or so, for a total of possibly 19 failures in three years.

As a computer technician, I have seen drives fail anywhere from 3 years to 3 weeks.  The failure can be due to head, plate or circuit board malfunction. So the MTBF still provides little relevance to your particular hard drive. Just know that hard drives fail far more often than the manufacturer data suggests.

If you reached this site in search of  BHO Technologists’ data recovery services, just click the link and you will find contact information.

Olan

Tags: hard drive failure, hard drive recovery, hdd recovery

This entry was posted on Tuesday, February 10th, 2009 at 1:38 am and is filed under Data Recovery, hard drive recovery. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.