From owner-freebsd-mobile Tue Jun 6 15: 4:18 2000 Delivered-To: freebsd-mobile@freebsd.org Received: from frmug.org (frmug-gw.frmug.org [193.56.58.252]) by hub.freebsd.org (Postfix) with ESMTP id DC4BF37B718 for ; Tue, 6 Jun 2000 15:04:13 -0700 (PDT) (envelope-from roberto@keltia.freenix.fr) Received: (from uucp@localhost) by frmug.org (8.9.3/frmug-2.7/nospam) with UUCP id AAA00138 for freebsd-mobile@freebsd.org; Wed, 7 Jun 2000 00:04:06 +0200 (CEST) (envelope-from roberto@keltia.freenix.fr) Received: by keltia.freenix.fr (Postfix, from userid 101) id BC28E886E; Tue, 6 Jun 2000 23:43:43 +0200 (CEST) Date: Tue, 6 Jun 2000 23:43:43 +0200 From: Ollivier Robert To: freebsd-mobile@freebsd.org Subject: Re: spinning down the drive Message-ID: <20000606234343.A68786@keltia.freenix.fr> Mail-Followup-To: freebsd-mobile@freebsd.org References: <20000606161140.A8303@dophnic.yi.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: <20000606161140.A8303@dophnic.yi.org>; from moeller@dophnic.yi.org on Tue, Jun 06, 2000 at 04:11:40PM -0500 X-Operating-System: FreeBSD 5.0-CURRENT/ELF AMD-K6/200 & 2x PPro/200 SMP Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org According to Derek Moeller: > Is this possible? Are there significant hard drive power gains if it's spun > down in a laptop? Considering that you have a sync(2) every 30s (w/o softupdates) and even more of them with softupdates, I don't see what you'd gain. I'd say it takes more power to restart the drive every N seconds than letting it spin. I may be wrong but I don't see it useful. -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr FreeBSD keltia.freenix.fr 5.0-CURRENT #80: Sun Jun 4 22:44:19 CEST 2000 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message