From owner-freebsd-questions Thu Jun 20 21: 9:36 2002 Delivered-To: freebsd-questions@freebsd.org Received: from rover.village.org (rover.bsdimp.com [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id CECE337B410; Thu, 20 Jun 2002 21:09:25 -0700 (PDT) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.11.3/8.11.3) with ESMTP id g5L49IY55557; Thu, 20 Jun 2002 22:09:19 -0600 (MDT) (envelope-from imp@village.org) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.11.6/8.11.6) with ESMTP id g5L49HG25194; Thu, 20 Jun 2002 22:09:17 -0600 (MDT) (envelope-from imp@village.org) Date: Thu, 20 Jun 2002 22:09:03 -0600 (MDT) Message-Id: <20020620.220903.34566132.imp@village.org> To: jhunt@lynden.on.ca Cc: questions@FreeBSD.ORG, small@FreeBSD.ORG, ITStaff@wmptl.com Subject: Re: Compact Flash vs ATA Disks From: "M. Warner Losh" In-Reply-To: <20020610173028.P89310-100000@lethargic.dyndns.org> References: <001401c210a7$f72b2d20$a800000a@transcon> <20020610173028.P89310-100000@lethargic.dyndns.org> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message: <20020610173028.P89310-100000@lethargic.dyndns.org> Jason Hunt writes: : On Mon, 10 Jun 2002, Communications Machine wrote: : : > I need a comparison in terms primarily of performance and reliability : > between using compact flash to boot vs a standard ATA disk drive on a : > machine used primarily as a router/firewall. : > : [ ... snip ... ] : > : : Check out http://www.freebsd.org/doc/en_US.ISO8859-1/articles/solid-state/ : : Looks pretty interesting to me. You could do the same with a hard-drive : that is mounted read-only. The nice part about doing this is that it is : stateless, so you don't have to wait for fsck if it crashes. Except that even hard drives that are mounted read-only fail a lot more than the compact flash. We switched from ata hard disks to compact flash for our semi-embedded systems about two or so years ago. We went from getting about 1 disk RMA a week to not having had any CF RMAs yet. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message