Re: RAID Class Drives`

[Joachim Otahal <Jou@gmx.net>]

Aryeh Gregor schrieb:
> On Fri, Mar 19, 2010 at 4:15 AM, John Robinson
> <john.robinson@anonymous.org.uk>  wrote:
>    
>> Do you have a reference for this? Most drives' operating temperature range
>> is specified up to 55°C, sometimes higher for enterprise drives, without any
>> indication (apart from common sense perhaps) that running them this hot
>> reduces lifespan.
>>      
> Google's study of>100,000 disks over 9 months or so
> <http://labs.google.com/papers/disk_failures.html>  suggests that
> hotter drives don't fail much more often:
>    
Thanks for the link.
That study was referred to as a comparison to the current situation. But 
google only tested up to 400 GB in that statistic, and I DO remember 
that my old 160GB to 500 GB drives were all a lot hotter than any of my 
current drives. Those Samsung 1TB drives only reached 35°C during last 
hot summer, but I did let the fan rotate faster during the summer.

Current real world data of my drives (Windows main machine, room 
temperature is 23°C right now):
SAMSUNG 1 TB 27°C (HD103UJ)
WD 1 TB 30°C (WD10 EACS-00ZJBO)
WD 750 GB 34°C (WD75 00AACS-00ZJBO)
SAMSUNG 1 TB 25°C (HD103UJ)

Linux Server (mirrored drives):
SEAGATE 1,5 TB 34°C (ST31500341AS)
SEAGATE 1,5 TB 34°C (ST31500341AS) <- this one will probably fail in one 
or one and a half year if the realloc-sector count continues to develop 
this way.

Joachim Otahal

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