Comment 356 for bug 59695

Revision history for this message
Akshay Srinivasan (akshay.srinivasan) wrote : Re: [Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime

That might be true , but honestly my laptop gets too warm to keep it on
my lap when running linux.If Windows can somehow reduce Hard disk
temperature without parking heads madly , I think we can too.

On Mon, 2008-02-04 at 07:30 +0000, CTenorman wrote:
> I've been doing some research on this its essue, and the Debian fix (hdparm
> of 254 I believe) would seem to have a lot going for it. Google, in a
> massive study on hard drives, says
>
> "One of our key findings has been the lack of a consistent pattern of
> higher failure rates for higher temperature drives or for those drives
> at higher utilization levels. Such correlations have been repeatedly
> highlighted by previous studies, but we are unable to confirm them by
> observing our population."
> (http://labs.google.com/papers/disk_failures.pdf)
>
> So higher temperatures and longer running time may not really be
> affecting our drives hardly at all. Also, if the drives are forced to
> write very frequently because ext3, there's a very small chance our
> drives won't be engaged in the event of a fall. I doubt a user would
> blame Ubuntu if they dropped their laptop and their hard drive was
> damaged. They WOULD blame Ubuntu if it failed years before it would have
> under Windows.
>
> So given that temperature and runtime don't seem to affect the drives
> significantly, and the drives are engaged nearly all the time, thus
> negating any benefit of parking, is there any reason not to run at 254
> or 255 depending?
>