From owner-freebsd-questions@FreeBSD.ORG Thu Mar 11 17:53:14 2010 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 15D7B106566B for ; Thu, 11 Mar 2010 17:53:14 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from email1.allantgroup.com (email1.emsphone.com [199.67.51.115]) by mx1.freebsd.org (Postfix) with ESMTP id AC9498FC15 for ; Thu, 11 Mar 2010 17:53:13 +0000 (UTC) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by email1.allantgroup.com (8.14.0/8.14.0) with ESMTP id o2BHrAxi014487 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 11 Mar 2010 11:53:10 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1]) by dan.emsphone.com (8.14.4/8.14.3) with ESMTP id o2BHr9MU086391 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 11 Mar 2010 11:53:09 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.14.4/8.14.3/Submit) id o2BHr8MZ086338; Thu, 11 Mar 2010 11:53:08 -0600 (CST) (envelope-from dan) Date: Thu, 11 Mar 2010 11:53:08 -0600 From: Dan Nelson To: Leslie Jensen Message-ID: <20100311175307.GA4528@dan.emsphone.com> References: <4B980792.3050103@eskk.nu> <4B981934.9090904@comcast.net> <4B98CA26.4050609@eskk.nu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B98CA26.4050609@eskk.nu> X-OS: FreeBSD 7.3-PRERELEASE User-Agent: Mutt/1.5.20 (2009-06-14) X-Virus-Scanned: clamav-milter 0.95.3 at email1.allantgroup.com X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (email1.allantgroup.com [199.67.51.78]); Thu, 11 Mar 2010 11:53:10 -0600 (CST) X-Scanned-By: MIMEDefang 2.45 Cc: Steve Polyack , freebsd-questions@freebsd.org Subject: Re: Does compression on zfs pool affect performance? .......WAS, Re: Silicon Image SiI 3124 and 3132 RAID controllers 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: Thu, 11 Mar 2010 17:53:14 -0000 In the last episode (Mar 11), Leslie Jensen said: > The solution for me was to create a raidz which gave me the same amount of > space. Now I wonder, should I enable compression? Will it affect > performance? The default lzjb compression is very fast and won't consume much CPU. If you have lots of easily-compressabe data it should improve performance. > Later I want to share this pool with SAMBA. Will SAMBA see the pool as a > filesystem? I don't think Samba cares about the filesystem layout, since it's a userland daemon. -- Dan Nelson dnelson@allantgroup.com