Bug 26009

Summary:	Powerdown IDE disks?
Product:	Base System	Reporter:	Sven Berkvens-Matthijsse <sven>
Component:	kern	Assignee:	Søren Schmidt <sos>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	4.2-STABLE
Hardware:	Any
OS:	Any

Description Sven Berkvens-Matthijsse 2001-03-22 21:30:00 UTC

I'd like to be able to powerdown (after unmounting all filesystems
perhaps, if that's necessary) one or more IDE harddisks attached
to my system. Currently, this does not seem to be possible in
FreeBSD. apm is not a solution for me, because my BIOS (old) does
not support APM stuff and I want to be able use to machine normally
after a power-down command to the IDE harddrive. I've tried to hack
in support for this feature myself by sending ATA command 0xe6. The
disk powers down, but then FreeBSD hangs, and that's not what I
wanted :-) Of course, this wish is not high-priority at all. If anyone
knows how to create this functionality, I'd greatly appreciate it.

Comment 1 Peter Pentchev freebsd_committer

2001-03-23 09:37:52 UTC

Responsible Changed
From-To: freebsd-bugs->sos

Soren is Mr. ATA ;)  Besdes, this sounds like a nice candidate for 
adding to the upcoming atacontrol utility.

Comment 2 Søren Schmidt freebsd_committer

2001-04-02 20:41:34 UTC

State Changed
From-To: open->closed


The atacontrol util that has just been brought into -current 
will have this kind of functionality "soon". 
However there is not much purpose in shutting down your 
only drive, the kernel wont be able to work for long 
that way :)