From owner-freebsd-fs@FreeBSD.ORG Fri Dec 5 00:10:51 2014 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C2B23DAA for ; Fri, 5 Dec 2014 00:10:51 +0000 (UTC) Received: from blade.simplesystems.org (blade.simplesystems.org [65.66.246.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7219DC98 for ; Fri, 5 Dec 2014 00:10:51 +0000 (UTC) Received: from freddy.simplesystems.org (freddy.simplesystems.org [65.66.246.65]) by blade.simplesystems.org (8.14.4+Sun/8.14.4) with ESMTP id sB5042N6007459; Thu, 4 Dec 2014 18:04:02 -0600 (CST) Date: Thu, 4 Dec 2014 18:04:02 -0600 (CST) From: Bob Friesenhahn X-X-Sender: bfriesen@freddy.simplesystems.org To: d@delphij.net Subject: Re: ASHIFT=13 by default. In-Reply-To: <5480E48C.6040801@delphij.net> Message-ID: References: <5480C336.8020901@multiplay.co.uk> <5480E48C.6040801@delphij.net> User-Agent: Alpine 2.01 (GSO 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.2 (blade.simplesystems.org [65.66.246.90]); Thu, 04 Dec 2014 18:04:03 -0600 (CST) Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Dec 2014 00:10:51 -0000 On Thu, 4 Dec 2014, Xin Li wrote: > > BTW. Why bother to create zpools over zvols? Wouldn't it mean double > checksumming? Clients of the zvol might corrupt the filesystem stored on it. The double checksum would still help in that case. Bob -- Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/