Subject: Re: test of new powerdown facility
To: None <tech-kern@NetBSD.ORG>
From: Soren S. Jorvang <email@example.com>
Date: 06/10/1998 20:14:20
On Wed, 10 Jun 1998 gwr@NetBSD.ORG wrote:
> > From: Jason Thorpe <firstname.lastname@example.org>
> > Date: Wed, 10 Jun 1998 10:09:56 -0700
> > > > I think Gordon's "spin down" idea is good, too... once the sync operation
> > > > is complete, maybe spinning down the disk isn't such a bad idea, too...
> > >
> > > Not all drives 'listen' to the spindown command.
> > ...and Curt's "man, that'd take a long time to reboot" comment, and the
> > other comment about how some won't spin up again until a power cycle
> > made me think it wasn't such a good idea :-)
> It might not have been clear from my short suggestion, but
> I did not mean to suggest a SCSI STOP in any circumstance
> OTHER than "we are about to power off." In that case, any
Or halt -p was used, but the box cannot do soft powerpown, yet it is
probably desirable for the disks to spin down if possible.
> reboot or subsequent spin-up issues are irrelevant.
> Anyway, sounds like SYNCHRONIZE CACHE is sufficient, and
> would be safe to do at every shutdown (not just power-off).