From owner-freebsd-questions@FreeBSD.ORG Wed Apr 11 01:06:26 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id EC5CE16A400 for ; Wed, 11 Apr 2007 01:06:26 +0000 (UTC) (envelope-from jules.stocks@gmail.com) Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.233]) by mx1.freebsd.org (Postfix) with ESMTP id 7511D13C45D for ; Wed, 11 Apr 2007 01:06:26 +0000 (UTC) (envelope-from jules.stocks@gmail.com) Received: by wx-out-0506.google.com with SMTP id s18so16071wxc for ; Tue, 10 Apr 2007 18:06:25 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:in-reply-to:references:mime-version:content-type:message-id:cc:content-transfer-encoding:from:subject:date:to:x-mailer; b=b7+yPdlml8aalWZEjhacOzaMj0LhzB5oKnvgJYbFgqaJygIkTOv4E/Yo3M6U00JH6tgDiVpNhIgm3VVaYrMrOmkPYs4rDc7mB88DiNOpA3+iziOvTVGIR5ccWzqQ3TFfjKexJ37iHsBURyIWHr9gOJDdxChciYbp+4yddrljjyU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:in-reply-to:references:mime-version:content-type:message-id:cc:content-transfer-encoding:from:subject:date:to:x-mailer; b=MrgYoOcLlrRnWLDMJL5GWbh/9xihBNNtRjGo+O43baRmBlkIPuMcpIsy6Zmw6pWz9+N5IxUY4BsJYKSTFgSaxulv4nBIoI2Aspr5YnyjNpgH6vQ0pGRK5tWwP0/4eD/8HepbI+U7Nzs3AFXmYzf2h9J+9d2/sU3jpeepnGm/O7w= Received: by 10.70.129.4 with SMTP id b4mr97620wxd.1176253581359; Tue, 10 Apr 2007 18:06:21 -0700 (PDT) Received: from ?192.168.1.100? ( [71.192.59.138]) by mx.google.com with ESMTP id 26sm12000473wrl.2007.04.10.18.06.17; Tue, 10 Apr 2007 18:06:20 -0700 (PDT) In-Reply-To: <20070408221017.23f060ea.breath@unix.net> References: <46192C1B.4060706@u.washington.edu> <20070408221017.23f060ea.breath@unix.net> Mime-Version: 1.0 (Apple Message framework v752.3) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <3B8A60E3-9600-47A5-934F-7DACB78F50B7@gmail.com> Content-Transfer-Encoding: 7bit From: Jules Gilbert Date: Tue, 10 Apr 2007 21:06:15 -0400 To: Yuri Grebenkin X-Mailer: Apple Mail (2.752.3) Cc: freebsd-questions@freebsd.org Subject: Re: Automatic means for spinning down disks available? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Apr 2007 01:06:27 -0000 Boy, do I want answers too! We have HD's that run 24X7. And I don't want to turn them off, I just want them to sleep quietly until needed. We have lot's of RAM, thus plenty of cache space. Our machines are all blades. (Does this matter? I don't know.) IBMs and Super-Micros. We spend zillions of bucks on electricity; We use these machines 24X7 now, but soon will only need them about 12 hours a day. Is 24X7 operation the optimal strategy? What's the best course here, wrt electric costs, and wrt disk failures? --jg On Apr 8, 2007, at 2:10 PM, Yuri Grebenkin wrote: > Just wonder if it's better for an HDD not to spindown at all. > Maybe it's safer to spin in peace than to park/launch? > What do you think? > >> Hello again all, >> I was wondering if there was an automatic, and possibly timed >> means to >> spin down disks available in either ports or the base system, by >> chance. >> Just trying to cut down on energy use, and increase my disks' >> lives :). >> TIA, >> -Garrett > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org"