Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262497AbTGAPfe (ORCPT ); Tue, 1 Jul 2003 11:35:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262498AbTGAPfe (ORCPT ); Tue, 1 Jul 2003 11:35:34 -0400 Received: from sccrmhc12.comcast.net ([204.127.202.56]:29351 "EHLO sccrmhc12.comcast.net") by vger.kernel.org with ESMTP id S262497AbTGAPf0 (ORCPT ); Tue, 1 Jul 2003 11:35:26 -0400 Reply-To: From: To: "'Linux Kernel Mailing List'" Subject: RE: bkbits.net is down Date: Tue, 1 Jul 2003 10:46:13 -0500 Message-ID: <002a01c33fe7$e7718e40$0200a8c0@wsl3> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.6604 (9.0.2911.0) In-Reply-To: <1056773286.10255.5.camel@granite> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2533 Lines: 61 This is why all my clients get HP 7504a tape drives in their tape servers. 40/80GB tape that can do disaster recovery is a GOOD thing! :-) -- /"\ / For information and quotes, email us at \ / ASCII RIBBON CAMPAIGN / info@lrsehosting.com X AGAINST HTML MAIL / http://www.lrsehosting.com/ / \ AND POSTINGS / vlad@lrsehosting.com ------------------------------------------------------------------------- -----Original Message----- From: linux-kernel-owner@vger.kernel.org [mailto:linux-kernel-owner@vger.kernel.org]On Behalf Of Joshua Penix Sent: Friday, June 27, 2003 11:08 PM To: Linux Kernel Mailing List Subject: Re: bkbits.net is down On Fri, 2003-06-27 at 20:19, Larry McVoy wrote: > On Fri, Jun 27, 2003 at 08:51:40PM -0400, Scott McDermott wrote: > > Larry McVoy on Fri 27/06 17:16 -0700: > > > I don't know if you all realize this but at one point we > > > had corrupted data in several repositories and the backups > > > were also shot. > > > > ever hear of tapes? > > bkbits is 45GB of data and growing. Tapes are completely impractical, > that's why we have hot spares. Boy you do need a good admin :) Done correctly, tapes are quite practical for that amount of data. A LTO or SDLT drive would back the entire 45GB thing up on a single tape, with room for at least one to two more full backups. Granted, you're not going to have tape act as your hot backup, but it is a good third line of defense. Plus data backed up to tape is immune from human or software error that may otherwise affect the hard-drive based data. 45GB of code is very compressible and I'm sure good chunks of that don't change on a weekly basis. I'd imagine you could get a weekly or bi-weekly full backup to tape in the span of about two hours, and then do nightly differentials which would probably be only 15 minutes in length. A filesystem capable of doing snapshots would ensure consistency of the repositories on tape and would prevent you from having to shutdown bkbits while backing up. --Josh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/