Comment 358 for bug 59695

Revision history for this message
Brian Ealdwine (eode) wrote : Re: [Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime

I think we can, too -- but this is triage, as far as I'm concerned.

On Mon, 2008-02-04 at 11:57 +0000, Akshay Srinivasan wrote:
> 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?
> >
>