Waking up Non-acpi (and non-apm) compliant IDE devices

[Derek James Witt <djw@flinthills.com>]

Hey all. I just thought of something for this. I have an older Western
Caviar 36400 hard drive that disconnects once the computer goes to
sleep.  Currently, I disallow sleep mode for that very reason. But
anyway,  I'm curious if it's safe to do a reset of  the IDE controller. 
In my case, the drive is currently on primary slave. I moved it from
secondary master.   

Right now, I fear if I hard-reset the IDE controller (a Via 686
UDMA100), I might also disconnect the primary master (Quantum fireball
6.4SE). That will render my box useless until I hit the the reset
button.  But, if I do a soft-reset, the caviar may not wake up. I know
the quantum will wake up fine upon a soft-reset and upon resume of the
system.  I'm going to try putting in interrupt 15 (secondary IDE) as a
primary power event in my bios and see if that can wake up the drive.


Oh, if you're curious, here is my fstab:

# /etc/fstab: static file system information.
#
# <file system>	<mount point>	<type>	<options>	<dump>	<pass>
/dev/hda6	/		xfs	defaults	1	1
/dev/hda5	/boot		xfs	defaults	1	1
/dev/hda7	/home		xfs	defaults	1	1
/dev/hdb3	/usr		xfs	defaults	1	1
/dev/hda9	/usr/local	xfs	defaults	1	1

/dev/hda8	none		swap	sw		0	0
/dev/hdb2	none		swap	sw		0	0

proc		/proc		proc	defaults	0	0

/dev/fd0	/floppy		auto	defaults,user,noauto	0	0

/dev/sr0	/cdrom		auto	defaults,ro,user,noauto	0	0
/dev/sr1	/cdrw		auto	defaults,ro,user,noauto	0	0

tmpfs		/dev/shm	tmpfs	defaults	0		0

/dev/hda1	/win2k		ntfs	defaults,ro,user,uid=cappicard	0	0
/dev/hdb1	/win2k-driveE	ntfs	defaults,ro,user,uid=cappicard	0	0

As you probably see, if my caviar (hdb) disconnects, I'm pretty-much SOL
if  I try to run X or any programs from /usr/*. And I have to resort to
SysRq to reboot the box (I hate finding a pen to hit the reset button). 

I'll let you know what I find out.

-- 
**  Derek J Witt                                              **
*   Email: mailto:djw@flinthills.com                           *
*   Home Page: http://www.flinthills.com/~djw/                 *
*** "...and on the eighth day, God met Bill Gates." - Unknown **