Date: Wed, 29 Apr 1998 13:19:38 -0700 (PDT) From: Doug White <dwhite@gdi.uoregon.edu> To: Steve Sims <SimsS@IBM.Net> Cc: questions@FreeBSD.ORG Subject: Re: Monitoring disk access Message-ID: <Pine.BSF.3.96.980429131702.13074H-100000@gdi.uoregon.edu> In-Reply-To: <000001bd6ec2$c6b36bc0$64468094@Elvis.RatsNest.VaBeach.Va.Us>
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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
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