[Info-vax] Where is EISNER:: and who funds it?

Arne Vajhøj arne at vajhoej.dk
Tue Dec 21 20:04:32 EST 2021


On 12/21/2021 7:59 PM, Jan-Erik Söderholm wrote:
> Den 2021-12-22 kl. 01:24, skrev Scott Dorsey:
>> Dennis Boone <drb at ihatespam.msu.edu> wrote:
>>>> If you run your data center in the 80s instead of the 60s, you get a
>>>> considerably shorter lifespan on your hardware.  Great decrease in MTTF
>>>> mostly due to capacitor failures but also CPU failures to a lesser 
>>>> extent.
>>>
>>> Not everyone agrees.  For example, Google and Backblaze both say
>>> temperature isn't as big a factor in disk drive life as you'd expect.
>>>
>>> https://www.backblaze.com/blog/hard-drive-temperature-does-it-matter/
>>>
>>> The Google link in that document talks specifically about hard drives.
>>
>> Yes, it doesn't have as big an effect on hard drives.  As I said, it's 
>> mostly
>> increased numbers of electrolytic capacitor failures and to a lesser 
>> extent
>> CPU failures.
>>
>>> Elsewhere, Google also report that they run their datacenters at 80
>>> degrees:
>>>
>>> https://www.google.com/about/datacenters/efficiency/
>>
>> Yes.  It's more cost-effective for them and they are changing the 
>> hardware
>> out on a fairly short cycle anyway.
> 
> Aha! F! Why not use a standard temp scale.
> I thought it sounded a bit high...

The standard is K.

:-)

Arne



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