[Beowulf] Are disk MTBF ratings at all useful?

Joe Landman landman at scalableinformatics.com
Fri Apr 19 08:56:51 PDT 2013


On 4/19/2013 11:47 AM, mathog wrote:
>> My overall impression is that, when buying drives, the single piece of
>> manufacturer provided data that
>> best correlates with the actual expected life of the drive is the
>> length of the warranty.  Even that is little
>> protection against a bad batch though.

Use AFR and warranty, ignore everything else.  MTBF does not correlate 
at all against AFR, and AFR is an objective measure.

>>
>> Thanks,
>>
>> David Mathog
>> mathog at caltech.edu
>> Manager, Sequence Analysis Facility, Biology Division, Caltech
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