Summary: Re: Spin down HDD after disk sync or before power off

Bruce Cran bruce at cran.org.uk
Fri Oct 22 11:00:53 UTC 2010


On Fri, 22 Oct 2010 12:07:36 +0200
Tijl Coosemans <tijl at coosemans.org> wrote:

> FreeBSD frequently accesses hard disks (log files, flushing dirty
> memory pages every 30s,...) and laptop drives tend to have aggressive
> power saving settings by default. That's why your load cycle is so
> high.

I'm not sure the APM value updates the idle3 timer inside the
drive: it may be necessary to run WD's wdidle3.exe tool to change the
power management timer.  And yes, people are rather annoyed that it's
necessary to have a copy of DOS to update the drive!

-- 
Bruce Cran


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