From owner-freebsd-questions Wed Apr 29 13:19:53 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA19675 for freebsd-questions-outgoing; Wed, 29 Apr 1998 13:19:53 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from gdi.uoregon.edu (gdi.uoregon.edu [128.223.170.30]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA19654 for ; Wed, 29 Apr 1998 13:19:43 -0700 (PDT) (envelope-from dwhite@gdi.uoregon.edu) Received: from localhost (dwhite@localhost) by gdi.uoregon.edu (8.8.7/8.8.8) with SMTP id NAA13144; Wed, 29 Apr 1998 13:19:39 -0700 (PDT) (envelope-from dwhite@gdi.uoregon.edu) Date: Wed, 29 Apr 1998 13:19:38 -0700 (PDT) From: Doug White Reply-To: Doug White To: Steve Sims cc: questions@FreeBSD.ORG Subject: Re: Monitoring disk access In-Reply-To: <000001bd6ec2$c6b36bc0$64468094@Elvis.RatsNest.VaBeach.Va.Us> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 23 Apr 1998, Steve Sims wrote: > But the problem remains that the disk doesn't ever spin down, even though > all the APM stuff is enabled and the disk is set to spin down after 60 > seconds of inactivity. If you have APM built in then it enables a command in the wdc driver that explicitly disables disk spindown. The wdc driver gets angry if it accesses a spindown disk, it will spew errors about ``interrupt timeout''. > I've got to believe that something is periodically touching the disk and > that's enough to reset the sleep-mode timer. Is there a way of checking to > see what's prodding the hard drive? Run top and watch -- if a process uses the disk it's priority will jump and it may show up in a `sbwait' state. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message