From owner-freebsd-fs@FreeBSD.ORG Tue Nov 2 18:16:33 2010 Return-Path: Delivered-To: fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 56B6B1065697 for ; Tue, 2 Nov 2010 18:16:33 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from out-0.mx.aerioconnect.net (out-0-26.mx.aerioconnect.net [216.240.47.86]) by mx1.freebsd.org (Postfix) with ESMTP id 39EE18FC15 for ; Tue, 2 Nov 2010 18:16:32 +0000 (UTC) Received: from idiom.com (postfix@mx0.idiom.com [216.240.32.160]) by out-0.mx.aerioconnect.net (8.13.8/8.13.8) with ESMTP id oA2I0CJY008488; Tue, 2 Nov 2010 11:00:12 -0700 X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e Received: from julian-mac.elischer.org (h-67-100-89-137.snfccasy.static.covad.net [67.100.89.137]) by idiom.com (Postfix) with ESMTP id 7039F2D6015; Tue, 2 Nov 2010 11:00:11 -0700 (PDT) Message-ID: <4CD051A9.7090200@freebsd.org> Date: Tue, 02 Nov 2010 11:00:09 -0700 From: Julian Elischer User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9.2.12) Gecko/20101027 Thunderbird/3.1.6 MIME-Version: 1.0 To: "Mikhail T." References: <4CD04AEC.8040607@aldan.algebra.com> In-Reply-To: <4CD04AEC.8040607@aldan.algebra.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.67 on 216.240.47.51 Cc: fs@freebsd.org Subject: Re: Using an SSD "disk" for / X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Nov 2010 18:16:33 -0000 On 11/2/10 10:31 AM, Mikhail T. wrote: > Hello! > > I'm setting up a new system and would like to use a moderate (64Gb > or 128Gb) SSD-drive to boot from. > > This will house /, /var, /home, and the /usr/local and thus see > plenty of activity, whenever src and ports are updated, or "world" > is remade, or packages are upgraded. I'm hoping, these operations > would be much faster, than with a regular HDD. > > However, people mention, that SSDs develop /severe/ performance > degradation if written to A LOT -- unless some SDD-specific > operation (TRIM) is used, but not all Operating Systems support > that... Does FreeBSD-8? Is that sufficient, or will an SSD degrade > quickly anyway? there are trim patches but not in the OS by default as yet. > > Does anyone use an SSD under FreeBSD? Which brand/model? Are you > happy with it? I don't use it for / it's a waste.. / is usually not such a high priority in terms of performance etc.. usually I use flash for data regions. > > Also, what parameters should I give to newfs? SSDs' characteristics > seem rather different from HDDs', so it is unlikely, that newfs' > defaults will be optimal for an SSD... Would a different filesystem > (ZFS?) be a better choice, than FFS, for these devices? > > Other thoughts? Thank you very much! Yours, > > -mi > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >