From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 63851138375 for ; Tue, 8 Jan 2013 19:08:32 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C401AE0684; Tue, 8 Jan 2013 19:08:18 +0000 (UTC) Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id DB78721C0DE for ; Tue, 8 Jan 2013 19:06:28 +0000 (UTC) Received: from compute6.internal (compute6.nyi.mail.srv.osa [10.202.2.46]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id 73308208B8 for ; Tue, 8 Jan 2013 14:06:28 -0500 (EST) Received: from frontend1.nyi.mail.srv.osa ([10.202.2.160]) by compute6.internal (MEProxy); Tue, 08 Jan 2013 14:06:28 -0500 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=binarywings.net; h=message-id:date:from:mime-version:to:subject:references :in-reply-to:content-type; s=mesmtp; bh=CfT2qra5nny9FcwHMKGBELpu j3g=; b=gHOhuCo4Z7rxNOdNpqMpCWvLfPF+lc1j/cFfWN/5SQ8FwfgdyIr/Mv5X Iq/tCaRJzbWfhM4fqkvWB8QdbG1EZvULx3wIWDhSouqPIo8jlUdbu2CY552v1FjK 2KOXkcRzLV/GqXIySZohsrbBnFKpmgFzANwRUdznsc+OdlBFF7Y= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=message-id:date:from:mime-version:to :subject:references:in-reply-to:content-type; s=smtpout; bh=CfT2 qra5nny9FcwHMKGBELpuj3g=; b=PYAJFVFQ6O+oG30UgNbo3TDMo4JP1rVF9hZG TAAKAqHb3pFiNJUker2MSeWdSn9clA81SXeaTcbYEEKfQw/I64XKcCQP8+Eka34N fYZclzglrWOyepRZBxmlXNNbagaqTqTs6tt8EKn1LSV8dp2uV4lylR8I7zfaq7xI 2UKzkh4= X-Sasl-enc: YK8Z1gu0Ge2ZwhOGNLFpNqz02Hy1jbkdAldWFh8Ll5q2 1357671987 Received: from [192.168.5.18] (unknown [83.169.5.6]) by mail.messagingengine.com (Postfix) with ESMTPA id 7ECF98E0794 for ; Tue, 8 Jan 2013 14:06:27 -0500 (EST) Message-ID: <50EC6E31.7030101@binarywings.net> Date: Tue, 08 Jan 2013 20:06:25 +0100 From: Florian Philipp User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.11) Gecko/20121130 Thunderbird/10.0.11 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] OT: Fighting bit rot References: <50EB2BF7.4040109@binarywings.net> <20130108012016.2f02c68c@khamul.example.com> <50EBCA77.8030603@binarywings.net> <3613897.q2tncFpUrH@localhost> In-Reply-To: <3613897.q2tncFpUrH@localhost> X-Enigmail-Version: 1.3.5 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigBD93F1378BF3A753D1207D14" X-Archives-Salt: a0caf1f0-a670-4fb3-a85b-d78564a39ba1 X-Archives-Hash: 3412c73e5d0d261b78c827b050103a3e This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigBD93F1378BF3A753D1207D14 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Am 08.01.2013 18:35, schrieb Volker Armin Hemmann: > Am Dienstag, 8. Januar 2013, 08:27:51 schrieb Florian Philipp: >> Am 08.01.2013 00:20, schrieb Alan McKinnon: >>> On Mon, 07 Jan 2013 21:11:35 +0100 >>> >>> Florian Philipp wrote: >>>> Hi list! >>>> >>>> I have a use case where I am seriously concerned about bit rot [1] >>>> and I thought it might be a good idea to start looking for it in my >>>> own private stuff, too. >> >> [...] >> >>>> [1] http://en.wikipedia.org/wiki/Bit_rot [...] >>> If you mean disk file corruption, then doing it file by file is a >>> colossal waste of time IMNSHO. You likely have >1,000,000 files. Are >>> you really going to md5sum each one daily? Really? >> >> Well, not daily but often enough that I likely still have a valid copy= >> as a backup. >=20 > and who guarantees that the backup is the correct file? >=20 That's why I wanted to store md5sum (or sha2sums). > btw, the solution is zfs and weekly scrub runs. >=20 Seems so. --------------enigBD93F1378BF3A753D1207D14 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlDsbjEACgkQqs4uOUlOuU8EhQCfcpSNwfXZXJyYetKER7SMmXFt vpEAn2SyArys+nEhJt5tQrv6GD8BJVQV =FIug -----END PGP SIGNATURE----- --------------enigBD93F1378BF3A753D1207D14--