[Beowulf] cold spare storage?

Benson Muite benson.muite at ut.ee
Thu Aug 17 14:26:07 PDT 2017

On 08/17/2017 09:54 PM, mathog wrote:
> On 17-Aug-2017 11:10, Alex Chekholko wrote:
>> The Google paper from a few years ago showed essentially no correlations
>> between the things you ask about and failure rates.  So... do whatever is
>> most convenient for you.
> This one?
>    http://research.google.com/archive/disk_failures.pdf
> They didn't do a control where they put some drives on a shelf and then 
> tested
> them later. Nor did they (as far as I can tell) do a control with 
> installed disks powered on but not spun up.  Every disk they tested was 
> fully "live".  It is true that they didn't see any big difference based 
> on usage, temperature, or vibration (to the limited extent they could 
> measure this).
> Also that study was published in 2007 so the 5 year failure rates are 
> for disks which were made in 2001 or 2002.  That is a long, long time 
> ago in terms of disk technology and density.  I'm not even sure that I 
> believe their results from 10 years ago are still fully applicable to 
> current disks.
> Regards,
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
> _______________________________________________

Related study at:

Computer failure data repository seems to be not so active 

May suggest some of these issues be considered in VI4IO (might also get 
an answer to this question there as well) - 

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