From owner-freebsd-questions@FreeBSD.ORG Mon Nov 8 13:52:23 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 6D00D1065679 for ; Mon, 8 Nov 2010 13:52:23 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id F32668FC1A for ; Mon, 8 Nov 2010 13:52:22 +0000 (UTC) Received: by wyb34 with SMTP id 34so3429732wyb.13 for ; Mon, 08 Nov 2010 05:52:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=scCyysCoS/lMekI9czjvyaqxu5qk2ztkIXO7UdX23vE=; b=NeBZZ7J2eO8gQ81FpqO5nWx6LzDUeKuQ8VTTJSpnSno+SPzPxlQYntRaXG9vQF889t vKuxDKGCAbp4cvHWSpblEONnqnJUpNnspwg++KQDokJ74zmuI2JNLDJ9eJl8paaznTTu MUzD7T8Bkhu/YIyowRZj3IvXuB0Bnqz6mQEX0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=WsykshRo4Pt+FhVzXXGIoJ7bQK2ZmgQXaXDEYqz/H7gIoBCBOaggRBfIYIdDyfSmPS 8c5qW6EbmKhd+bcFk+P6H8II5SbcXQFxZWUU6juYbedP782zsLFJHd5doLfY5Ma66s3h zF3a8iga9F4SV/xloXk/M1e3dkuzCk361+HYI= MIME-Version: 1.0 Received: by 10.216.196.156 with SMTP id r28mr5310404wen.29.1289224341142; Mon, 08 Nov 2010 05:52:21 -0800 (PST) Received: by 10.216.72.148 with HTTP; Mon, 8 Nov 2010 05:52:21 -0800 (PST) In-Reply-To: <20101106213836.GA77198@slackbox.erewhon.net> References: <20101106203016.GB13095@guilt.hydra> <20101106213836.GA77198@slackbox.erewhon.net> Date: Mon, 8 Nov 2010 13:52:21 +0000 Message-ID: From: krad To: Roland Smith Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: FreeBSD Questions Subject: Re: ZFS License and Future 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: Mon, 08 Nov 2010 13:52:23 -0000 On 6 November 2010 21:38, Roland Smith wrote: > On Sat, Nov 06, 2010 at 02:30:16PM -0600, Chad Perrin wrote: > > > Having said all that it really depends on whether you need the extra > > > features of zfs. Personally I cant see how anyone with any important > data > > > can do without checksuming. > > > > I guess that depends on what you're doing with the data and what kind of > > external tools you have in place to protect/duplicate it in case of a > > problem. > > The GEOM_ELI class provides optional authentication/checksumming. See > geli(8), > especially the -a option. > > Roland > -- > R.F.Smith http://www.xs4all.nl/~rsmith/ > [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] > pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) > im not sure on whether that you be a viable replacement, as it has to be a fairly good checksum to avoid clashes, whilst also being quick so it doesnt adversly affect disk performance. Also what does it do if it detects the checksum doesnt match etc?