On Sat, 28 Nov 1998, Martin Gonzalez wrote:
> I try to set hd's spin down time using hdparm but 30 seconds after hd
> enter in standby mode, a message appears:
>
> hda: irq timeout: status=0xd0 {Busy}
> ide0: reset: success
>
> and the hard disk spin up again....
Your hard drive probably has useless firmware which does not know how to
handle spindowns correctly. It sounds as if when the drive spins down it
stops responding to commands, so Linux has to reset it to get it talking
again (and when it is reset, it spins up again).
> I can't find what process reset ide0 or if there are other utilities
> that I can use.
The kernel reset it because it was acting strangely. I'd say just don't
set that drive to spin down.
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