From owner-freebsd-fs@FreeBSD.ORG Thu Nov 14 17:42:35 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 55056FC9 for ; Thu, 14 Nov 2013 17:42:35 +0000 (UTC) Received: from odin.blazingdot.com (odin.blazingdot.com [199.48.133.254]) by mx1.freebsd.org (Postfix) with ESMTP id 3BFFF2EB6 for ; Thu, 14 Nov 2013 17:42:35 +0000 (UTC) Received: by odin.blazingdot.com (Postfix, from userid 1001) id 2E3A6114154; Thu, 14 Nov 2013 17:34:23 +0000 (UTC) Date: Thu, 14 Nov 2013 17:34:23 +0000 From: Marcus Reid To: freebsd-fs@freebsd.org Subject: Defaults in 10.0 ZFS through bsdinstall Message-ID: <20131114173423.GA21761@blazingdot.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Coffee-Level: nearly-fatal User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Nov 2013 17:42:35 -0000 Hi, I noticed a couple of things with the ZFS defaults that result from using the new installer in 10.0-BETA3. One, atime is turned off everywhere by default. There was a thread on this list on June 8 with a subject of 'Changing the default for ZFS atime to off?', and from what I can tell the idea of turning off atime by default was not a popular one. Two, and probably less controversial, is that fletcher4 is specified exlicitly on the root pool, even though it is default (wouldn't you just want to go with the default, in case it changes?) Marcus