Subject: Re: Power management
To: Hubert Feyrer <hubert@feyrer.de>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-sparc64
Date: 02/24/2007 22:44:37
On Sat, Feb 24, 2007 at 12:27:21PM +0100, Hubert Feyrer wrote:
> On Sat, 24 Feb 2007, Raymond Meyer wrote:
> >Does sparc64 port support power management on devices like hard disks? I 
> >will
> >have 2 SCSI disks in my Ultra 10 workstation, for dual booting into 
> >Solaris or
> >NetBSD. When I boot into NetBSD, I'd like the other disk to power off 
> >after a
> >period of time. Is this possible?
> 
> That doesn't seem specific to sparc64.
> 
> As far as I can see, spinning down disks after some idle time is supported 
> for IDE disks, but not for SCSI disks. For more information see atactl(8) 
> and scsictl(8).

You can still spin down scsi disk manually with
scsictl sd0 stop

the kernel will restart it if needed.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--