From owner-freebsd-fs@FreeBSD.ORG Tue Nov 2 17:51:32 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 CFEE610656A4 for ; Tue, 2 Nov 2010 17:51:32 +0000 (UTC) (envelope-from mi+thun@aldan.algebra.com) Received: from mail2.timeinc.net (mail2.timeinc.net [64.236.74.30]) by mx1.freebsd.org (Postfix) with ESMTP id 7BF258FC1D for ; Tue, 2 Nov 2010 17:51:31 +0000 (UTC) Received: from mail.timeinc.net (mail.timeinc.net [64.12.55.166]) by mail2.timeinc.net (8.13.8/8.13.8) with ESMTP id oA2HVOuo021802 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 2 Nov 2010 13:31:24 -0400 Received: from ws-mteterin.dev.pathfinder.com (ws-mteterin.dev.pathfinder.com [209.251.223.173]) by mail.timeinc.net (8.13.8/8.13.8) with SMTP id oA2HVO8W004856 for ; Tue, 2 Nov 2010 13:31:24 -0400 Message-ID: <4CD04AEC.8040607@aldan.algebra.com> Date: Tue, 02 Nov 2010 13:31:24 -0400 From: "Mikhail T." Organization: Virtual Estates, Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; uk; rv:1.9.2.11) Gecko/20101013 Lightning/1.0b2 Thunderbird/3.1.5 MIME-Version: 1.0 To: fs@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: 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 17:51:32 -0000 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? Does anyone use an SSD under FreeBSD? Which brand/model? Are you happy with it? 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