🚀 go-pugleaf

"Centre Parting" <nokia.account@ntlworld.com> wrote in message 
news:73sq4bF10rtd4U1@mid.individual.net...
> PeeCee wrote:
>> "Centre Parting" <nokia.account@ntlworld.com> wrote in message
>> news:73r4uoF10icg5U1@mid.individual.net...
>> snip
>>> Unless a drive has a decent volume of air moved across the PCB, it's
>>> doomed to a short life.
>>
>> snip
>>
>> Google's research suggests otherwise:
>>
>> From http://research.google.com/archive/disk_failures.pdf
>> <quote>
>> Contrary to previously reported results, we found
>> very little correlation between failure rates and either
>> elevated temperature or activity levels.
>> </quote>
>>
>> http://www.engadget.com/2007/02/18/massive-google-hard-drive-survey-turns-up-very-interesting-thing/
>> notes:
>> <quote>
>> there is less correlation between drive temperature and failure rates
>> than might have been expected, and drives that are cooled excessively
>> actually fail more often than those running a little hot
>> </quote>
>>
>>
>> best
>> Paul.
>
> Not my experience.
>
> I used to run my drives fanless.
> Had about 5 failures over 2 years.
> Since then (about five years ago) I've been running another 5 or so with 
> fans .... and not a SINGLE failure.
> All were and continue to be on high quality PSU's and mobo's.
>
> Coincidence ?
> Doubtful.
>




<quote>
The data in this study are collected from a large number
of disk drives, deployed in several types of systems
across all of Google's services. More than one hundred
thousand disk drives were used for all the results presented
here.
</quote>

So your 10 drive 'experience' is more valid than the "more than one hundred 
thousand' Google used in their research.
I don't think so.

Yes it is good practice to have good ventilation for a PC in general.
But freezing the balls of a Hard drives logic board is no guarantee it is 
not going to die.
In fact if you 'read' the Google document and observe Figure 4, you should 
note that cooling the drive to much is likely to 'increase' the failure 
rate.

Paul.