From owner-freebsd-stable@FreeBSD.ORG Tue Jan 12 08:45:34 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 85D81106566B; Tue, 12 Jan 2010 08:45:34 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: from mail-yx0-f171.google.com (mail-yx0-f171.google.com [209.85.210.171]) by mx1.freebsd.org (Postfix) with ESMTP id 1EF018FC2A; Tue, 12 Jan 2010 08:45:33 +0000 (UTC) Received: by yxe1 with SMTP id 1so20661912yxe.3 for ; Tue, 12 Jan 2010 00:45:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=0Qh9fU99LQ6Y6PztQoFGer6tmJYDrqgoWEcZBk3Z0o0=; b=fnYHbBkyL+FVXbsJWd6rjRjGzttoKwgEYCKsQjKA3ny2HbNOObB9fJikejZTXH7+Fo kqlGBrV/GfQDg4u6tPWUrlHAhAsg+f2WSnUgnk4clMlqgLriyoswtkjTcLshRKJBV6xO RKdfFp6DKDg0G5nX3/7+fDOYBYDrd50RkH7hk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=woyxqk/KeirAyP6oMEhfz477UKCyyd5p+ORJq3fCiB0itRpvM7HkI7YzQbnH+fNYIv 2ZpVsncUsKNqNq+MaEt9FkP/3nJ5HQDXnZx0IIm/1Deo7vy4CHwCd2rkBvh5o2j5h+sT AIkdBan+lur/PDNKxJonu33k3fAuenn3F9P/0= MIME-Version: 1.0 Received: by 10.101.132.14 with SMTP id j14mr9600223ann.58.1263285927478; Tue, 12 Jan 2010 00:45:27 -0800 (PST) Date: Tue, 12 Jan 2010 10:45:27 +0200 Message-ID: From: Dan Naumov To: freebsd-questions@freebsd.org, freebsd-fs@freebsd.org, FreeBSD-STABLE Mailing List Content-Type: text/plain; charset=ISO-8859-1 Cc: Subject: installing FreeBSD 8 on SSDs and UFS2 - partition alignment, block sizes, what does one need to know? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2010 08:45:34 -0000 For my upcoming storage system, the OS install is going to be on a 80gb Intel SSD disk and for various reasons, I am now pretty convinced to stick with UFS2 for the root partition (the actual data pool will be ZFS using traditional SATA disks). I am probably going to use GPT partitioning and have the SSD host the swap, boot, root and a few other partitions. What do I need to know in regards to partition alignment and filesystem block sizes to get the best performance out of the Intel SSDs? Thanks. - Sincerely, Dan Naumov