[Bug 53754] Re: ata_piix problem with Intel ICH7 chipset

Christian Mayrhuber christian.mayrhuber at gmx.net
Tue Mar 6 21:11:41 UTC 2007

Hi, again!

I expirienced what I assume is a harddrive reset unter MS Windows.
The harddisk makes a noise like it is parking it's heads at arbitrary
points in time. Somtimes, I notice a short delay in mouse movement during
the noise period. I think the windows driver "works around" the system  
by using a smaller timeout than Linux. In theory the same should be  
on linux through sysfs.
Issuing as root user (or adding it to /etc/rc.local):

        echo "1" > /sys/bus/scsi/devices/0:0:0:0/timeout

will set the timeout from 30s to 1s.
I tried suspend to ram (and wakeup) with this setting and it still worked..

I'll report back if there are any sideeffects for me.

Cheers, Christian

PS: Is there any tool like sysctl, which sets parameters in /proc, to set  
parameters in sysfs?

ata_piix problem with Intel ICH7 chipset

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