From owner-freebsd-questions@FreeBSD.ORG Wed Jun 24 20:20:54 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 273851065675 for ; Wed, 24 Jun 2009 20:20:54 +0000 (UTC) (envelope-from kline@thought.org) Received: from aristotle.thought.org (ns1.thought.org [209.180.213.210]) by mx1.freebsd.org (Postfix) with ESMTP id B98018FC0A for ; Wed, 24 Jun 2009 20:20:53 +0000 (UTC) (envelope-from kline@thought.org) Received: from thought.org (tao.thought.org [10.47.0.250]) (authenticated bits=0) by aristotle.thought.org (8.14.2/8.14.2) with ESMTP id n5OKKqxm033354 for ; Wed, 24 Jun 2009 13:20:52 -0700 (PDT) (envelope-from kline@thought.org) Received: by thought.org (nbSMTP-1.00) for uid 1002 kline@thought.org; Wed, 24 Jun 2009 13:20:49 -0700 (PDT) Date: Wed, 24 Jun 2009 13:20:49 -0700 From: Gary Kline To: freebsd-questions@freebsd.org Message-ID: <20090624202048.GA27646@thought.org> References: <20090622230729.GA20167@thought.org> <20090623201041.GA23561@thought.org> <20090623205944.GA43982@Grumpy.DynDNS.org> <20090624010922.GA24335@thought.org> <20090624093223.GF3468@ece.pdx.edu> <20090624184800.GD15815@comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090624184800.GD15815@comcast.net> User-Agent: Mutt/1.4.2.3i X-Organization: Thought Unlimited. Public service Unix since 1986. X-Of_Interest: With 22++ years of service to the Unix community. X-Spam-Status: No, score=-4.4 required=3.6 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.2.3 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on aristotle.thought.org Subject: Re: you're not going to believe this. 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, 24 Jun 2009 20:20:54 -0000 On Wed, Jun 24, 2009 at 11:48:00AM -0700, Charlie Kester wrote: > On Wed 24 Jun 2009 at 02:32:24 PDT freebsd@t41t.com wrote: > > > >The lifetime and reliability of SSDs are less-than-or-equal-to the > >lifetime and reliability of spinning magnetic drives, so don't buy an SSD > >for that. Whether SSDs use less power is an open question. There's a lot > >of data going either way. The last comparison I saw suggested spinning > >drives average less power than their SSD counterparts. In any event, it's > >not clear-cut yet. SSDs probably do generate less heat (but I've not seen > >data on that). Of course, the access time on an SSD is order(s) of > >magnitude less than for a spinning drive, and that's cause enough for > >lots of people to buy one. > > SSD's are/should also be favored in devices that are prone to mechanical > shocks. E.g., tablet PC's, and handheld devices like cellphones, music > players or game players. Interesting details. I was a hardware logic major, not software, but I got shunted into software and went withthe flow. To all the comments, pro/con, it looks that my earlier projection was right. It will indeed be awhile before there are reliable solid-state devs that can replace the spinning disk. And even then, cross-backups and even having a tape backup of critical data is a must. That said, I still want to buy one of these sub-mini notebooks this summer. -- Gary Kline kline@thought.org http://www.thought.org Public Service Unix http://jottings.thought.org http://transfinite.thought.org For FBSD list: http://transfinite.thought.org/slicejourney.php The 4.98a release of Jottings: http://jottings.thought.org/index.php