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For the knowledgeable and impatient, there are two questions
at the end of this post:
1) How to stop both the hard disk and the cpu fan at the same
time?
2) How to stop the power supply fan?
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OK here's the latest Re: putting my machine to sleep.
First of all, what I was referring to as the "cpu fan" is not the
cpu fan at all, but the power supply fan. It turns out that
both apm -S (standby) and apm -s (suspend) do actually stop the cpu
fan! Yay!
Hdparm -y /dev/hda works. Sometimes the drive starts up again
after a few seconds but most of the time it doesn't. Again,
I'm mounting everything with sync,noatime.
Hdparm -Y /dev/hda does not work:
Sep 10 18:24:57 mi kernel: hda: irq timeout: status=0xd0 {
Busy }
Sep 10 18:24:59 mi kernel: ide0: reset: master: error (0x00?)
My hard disk is a
hda: WDC WD102BA, ATA DISK drive
hda: WDC WD102BA, 9779MB w/2048kB Cache, CHS=1246/255/63
Is it a bad one?
In any case, I am now capable of shutting down the cpu fan,
and stopping the hard disk.
Problem #1: I can stop one or the other, but not both. Neither
apm -S; hdparm -y /dev/hda
nor
hdparm -y /dev/hda; apm -S
work. (The first one for obvious reasons; in the second case
the drive starts up again but I'm not sure why, suggestions?)
Problem #2: I don't know how to stop the power supply fan. Is
this possible? Can I buy a special power supply which does
this? What is so special about a power supply? Can I replace
it with a couple of (fanless) transformers? Is there a
Power-Supply-HOWTO?
-chris
