From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1OLP0y-0000iV-9B for garchives@archives.gentoo.org; Sun, 06 Jun 2010 23:12:24 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E9A5EE0CEE; Sun, 6 Jun 2010 23:12:09 +0000 (UTC) Received: from relay04-haj2.antispameurope.com (relay04-haj2.antispameurope.com [83.246.65.54]) by pigeon.gentoo.org (Postfix) with ESMTP id B4D40E0D19 for ; Sun, 6 Jun 2010 23:12:09 +0000 (UTC) Received: by relay04-haj2.antispameurope.com (ASE-Secure-MTA, from userid 1000) id 047665EC0CD; Mon, 7 Jun 2010 01:12:07 +0200 (CEST) Received: from pluto.fokus.fraunhofer.de (pluto.fokus.fraunhofer.de [195.37.77.164]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by relay04-haj2.antispameurope.com (ASE-Secure-MTA) with ESMTP id 6AC565EC0C1 for ; Mon, 7 Jun 2010 01:12:06 +0200 (CEST) Received: from EXCHSRV.fokus.fraunhofer.de (bohr.fokus.fraunhofer.de [10.147.9.231]) by pluto.fokus.fraunhofer.de (8.14.2/8.14.2) with SMTP id o56NC6kx001801 for ; Mon, 7 Jun 2010 01:12:06 +0200 (MEST) Received: from rigel ([10.147.65.195]) by EXCHSRV.fokus.fraunhofer.de with Microsoft SMTPSVC(6.0.3790.3959); Mon, 7 Jun 2010 01:12:06 +0200 Date: Mon, 07 Jun 2010 01:12:06 +0200 From: Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling) To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Fast checksumming of whole partitions Message-ID: <4c0c2b46.S7pP9ZMHHtLg2yZZ%Joerg.Schilling@fokus.fraunhofer.de> References: <20100605063956.GA5125@solfire> <4C0A8BC5.9040305@gmail.com> <20100605192331.GA11007@solfire> <201006052211.59256.m.klemenz@gmx.at> <4C0BF0B2.3080604@gmail.com> <4c0bfb5b.n0CegtEEVhvy3JzX%Joerg.Schilling@fokus.fraunhofer.de> <4C0C248A.9000401@gmail.com> In-Reply-To: <4C0C248A.9000401@gmail.com> User-Agent: nail 11.22 3/20/05 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-OriginalArrivalTime: 06 Jun 2010 23:12:06.0370 (UTC) FILETIME=[AE779C20:01CB05CD] Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 7291f92c-b2e7-47a3-afb1-e605aafde877 X-Archives-Hash: cc94e7ac9375e4e08e52467bd2edb9f4 7v5w7go9ub0o <7v5w7go9ub0o@gmail.com> wrote: > > sdd if=3D/dev/something bs=3D1m -md5 -onull > > err...... what is sdd? sdd is e.g. in ftp://ftp.berlios.de/pub/schily/ sdd is the oldest free "dd" reimplementation and it introduced intermedia= te statistics with signals from TTY in 1984 already (this is what *BSD now o= ffers=20 with ^T). > If it is significantly faster than dd/dcfldd, then sdd may be the magic > bullet! E.G. one would: > > 1. sdd if=3D/dev/something bs=3Dxx -md5 -o /dev/somethingout > 2. sdd if=3D/dev/somethingout bs=3Dxx -md5 -o null See man page.... and try out J=F6rg --=20 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) J=F6rg Schilling D-13353 = Berlin js@cs.tu-berlin.de (uni) =20 joerg.schilling@fokus.fraunhofer.de (work) Blog: http://schily.blo= gspot.com/ URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schil= y