From owner-freebsd-fs@FreeBSD.ORG Mon Aug 9 20:49:24 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 705D71065670 for ; Mon, 9 Aug 2010 20:49:24 +0000 (UTC) (envelope-from andriy@irbisnet.com) Received: from smtp105.rog.mail.re2.yahoo.com (smtp105.rog.mail.re2.yahoo.com [206.190.36.83]) by mx1.freebsd.org (Postfix) with SMTP id E45EC8FC0C for ; Mon, 9 Aug 2010 20:49:23 +0000 (UTC) Received: (qmail 23947 invoked from network); 9 Aug 2010 20:22:43 -0000 Received: from smtp.irbisnet.com (andriy@99.235.226.221 with login) by smtp105.rog.mail.re2.yahoo.com with SMTP; 09 Aug 2010 13:22:42 -0700 PDT X-Yahoo-SMTP: dz9sigaswBA5kWoYWVTZrGHmIs2vaKgG1w-- X-YMail-OSG: i2FJq5AVM1k2LH7igqSYmiA5BEYNUdGfWNFc4xzWXCS2pWM QDrDmK9Ne_qQvMYtbLV0IJM4BCcAG6NEZlkpPlOf_bh__.escq6m.WVD6fqq t.7OXoxrud4WjO.1Vzydkszl2c05M4RDC77ZSDtsgRZwbat3_PdsF.kD5JUY Jja3KXK_ni8SSNOVcuodD_kL9FoSZz7QLG0j7.WVpnX_7k8LDhejjTLEob.3 YhbA0CyB1UHtK.XYDj4L5HX21Q.R5xE2a8k3Hc.NcuBSRBtC.CG5jM8sdeIS NQA0dRZdZHKbfk7V6cEEwY.SWK5IJMoxFTa1pJxU.UkmUxleWBukW1p6uoHI Ffigue_7oAJUlHhlaSG0ySH3L82KfAyr7MBh5EkMSHqY3eIoOLbhpAqiQoSQ OOFNUCX2hZn6rWFfx4RD6sVq8PztWyOfzvb9GRCu78F5Y X-Yahoo-Newman-Property: ymail-3 Received: by smtp.irbisnet.com (Postfix, from userid 80) id 82DE31143F; Mon, 9 Aug 2010 16:22:42 -0400 (EDT) To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Date: Mon, 09 Aug 2010 16:22:42 -0400 From: Andriy Bakay Message-ID: X-Sender: andriy@irbisnet.com User-Agent: RoundCube Webmail/0.4-beta Subject: Re: Converting sysinstalled FreeBSD into ZFS-only server. 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: Mon, 09 Aug 2010 20:49:24 -0000 1. In your post you are using dedicated partition for swap. Did it provide any advantages versus swap on ZFS volume? 2. You are suggesting to set 'vm_kmem_size' value to 150% of RAM. What pros. and cons. against following formula: vm_kmem_size = RAM / 2 vfs.zfs.arc_max = vm_kmem_size - 512M 3. Could you be more verbose about your ZFS layout, what major advantages it provide against for example the following: http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot. I found it very interesting but I need more info. Regards, Andriy