Hard drive crash

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Hard drive crash

1 in 5 computers suffers from a fatal hard drive crash during its lifetime.

 
Although the official failure rate published by the major manufacturers is around 2%, the results of research conducted by Google between 2005 and 2007 show that of 100,000 hard drives tested, 8% experienced a failure in their second year.

After the first 3 critical months of use in which the potential manufacturing problems occur, failures obviously increase with the age of the hard disk.

There are two categories offailures:

  • Software failures: e.g. accidental reformatting or virus. These failures are characterized by a lack of access to data despite the  physical disk apparently functioning normally.
  • Physical failures: reader head or motor crash.These failures indicate that the physical media is damaged

 

Principal causes of data loss on hard drives

-     Accidental or malicious erasure of data

-     Repartitioning of a hard drive without verifying the back-up

-     Disasters such as floods or fires