From: s_titz@ira.uka.de (Olaf Titz) Subject: Re: could this be realized ?(Kernel-Extensions) Date: 2 Aug 1993 13:51:08 GMT
In article <1993Jul30.134512.20571@colorado.edu> drew@cs.colorado.edu (Drew Eckhardt) writes:
> The actual implementation would be pretty simple - basically, you just
> hook a timer, reset it on every SCSI disk read/write, and if it triggers
> issue a START/STOP UNIT command and set a bit in a scsi disk or scsi
> device structure. On every read/write, check that bit and if set
> start the disk, and clear the bit before issuing the command.
And beware of the sync() call - if it writes a timestamp the disks
will never stop. This probably had to be changed.
Anyway, I agree that stopping the disks does no good except in
power-critical laptops.
Olaf
--
olaf titz o olaf@bigred.ka.sub.org praetorius@irc
comp.sc.student _>\ _ s_titz@ira.uka.de LINUX - the choice
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