From owner-freebsd-hackers@FreeBSD.ORG Wed Jun 30 02:00:02 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0BB3B16A4CE for ; Wed, 30 Jun 2004 02:00:02 +0000 (GMT) Received: from voodoo.oberon.net (voodoo.oberon.net [212.118.165.100]) by mx1.FreeBSD.org (Postfix) with ESMTP id 92A3E43D2D for ; Wed, 30 Jun 2004 02:00:01 +0000 (GMT) (envelope-from igor@doom.homeunix.org) Received: from [213.172.12.36] (helo=doom.homeunix.org) by voodoo.oberon.net with esmtp (TLSv1:AES256-SHA:256) (Exim 4.34 (FreeBSD)) id 1BfUOE-000Hnk-Tw for hackers@freebsd.org; Wed, 30 Jun 2004 04:00:02 +0200 Received: from doom.homeunix.org (localhost [127.0.0.1]) by doom.homeunix.org (8.12.11/8.12.11) with ESMTP id i5U1t1H4000600; Wed, 30 Jun 2004 05:55:05 +0400 (MSD) (envelope-from igor@doom.homeunix.org) Received: (from igor@localhost) by doom.homeunix.org (8.12.11/8.12.11/Submit) id i5T94U64044757; Tue, 29 Jun 2004 13:04:30 +0400 (MSD) (envelope-from igor) Date: Tue, 29 Jun 2004 13:04:30 +0400 From: Igor Pokrovsky To: Markie Message-ID: <20040629090430.GA44729@doom.homeunix.org> Mail-Followup-To: Markie , hackers@freebsd.org, Arne Schwabe References: <86d63n8ttx.fsf@kamino.rfc1149.org> <002c01c45adb$53ce6770$f700000a@ape> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <002c01c45adb$53ce6770$f700000a@ape> User-Agent: Mutt/1.4.2.1i cc: hackers@freebsd.org cc: Arne Schwabe Subject: Re: Setting Standby Mode for ATA Disks X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jun 2004 02:00:02 -0000 On Fri, Jun 25, 2004 at 06:38:51PM +0100, Markie wrote: > ----- Original Message ----- > From: "Arne Schwabe" > To: > Sent: Friday, June 25, 2004 5:51 PM > Subject: Setting Standby Mode for ATA Disks > > > | Hi, > | > | is there a way to set the standby mode for ATA Disks > | > | Under linux hdparm -S seems to work: > | > | -S Set the standby (spindown) timeout for the drive. This > value is > | used by the drive to determine how long to wait (with no > disk > | activity) before turning off the spindle motor to save > power. > | Under such circumstances, the drive may take as long as 30 > sec- > | onds to respond to a subsequent disk access, though most > drives > | are much quicker. The encoding of the timeout value is > somewhat > | peculiar. A value of zero means "off". Values from 1 > to 240 > | specify multiples of 5 seconds, for timeouts from 5 > seconds to > | 20 minutes. Values from 241 to 251 specify from 1 to 11 > units > | of 30 minutes, for timeouts from 30 minutes to 5.5 > hours. A > | value of 252 signifies a timeout of 21 minutes, 253 sets a > ven- > | dor-defined timeout, and 255 is interpreted as 21 minutes > plus > | 15 seconds. > | > | I googled but I did not found anything like this for FreeBSD :/ > > Well this almost certainly doesn't help your question at all, but when I > upgraded a box from 4.x to 5.2.1 recently I found it was spinning down one > of the disks without twiddling with any settings at all. This, in turn, > appears to have caused the box to lockup/panic (can't remember now) so I > had to make a cron job that wrote to the disk every minute to stop it from > spinning down! > > I would love to know if there's some tool which can be used to just turn > this behaviour off completely! Did you try to turn it off in BIOS? -ip -- In a family recipe you just discovered in an old book, the most vital measurement will be illegible.