From owner-freebsd-stable Tue Jul 16 12:33:25 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 84C7337B400 for ; Tue, 16 Jul 2002 12:33:22 -0700 (PDT) Received: from sage-one.net (adsl-65-71-135-137.dsl.crchtx.swbell.net [65.71.135.137]) by mx1.FreeBSD.org (Postfix) with ESMTP id 48B3543E77 for ; Tue, 16 Jul 2002 12:33:19 -0700 (PDT) (envelope-from jackstone@sage-one.net) Received: from sagea (sagea [192.168.0.3]) by sage-one.net (8.11.6/8.11.6) with SMTP id g6GJX5556239; Tue, 16 Jul 2002 14:33:05 -0500 (CDT) (envelope-from jackstone@sage-one.net) Message-Id: <3.0.5.32.20020716143303.012724d8@mail.sage-one.net> X-Sender: jackstone@mail.sage-one.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Tue, 16 Jul 2002 14:33:03 -0500 To: Mattias Pantzare From: "Jack L. Stone" Subject: Re: Poor Mans Software raid 1 on root partition? Cc: freebsd-stable@FreeBSD.ORG In-Reply-To: <20020716190324.GA1042@skalman.campus.luth.se> References: <3.0.5.32.20020716083905.0117a758@mail.sage-one.net> <20020715225138.V82789-100000@mail.allcaps.org> <3.0.5.32.20020716083905.0117a758@mail.sage-one.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG At 09:03 PM 7.16.2002 +0200, Mattias Pantzare wrote: >> seems to be on the "backup" and very little on the restore -- and I'm >> speaking more from the disaster recovery -- to get back up and running >> within minutes. In raising the question about that, I have noticed few have >> ever "tested" any sort of backup plans to see if they really can restore, >> or how quickly they can restore. >> >> I for one would sure like to hear more about recovery plans..... mine is to >> use two identical HDs on each server and run DD frequently, with tars for >> incremental. Thus, I have found it very simple to shut down, pull the bad >> HD, move HD #2 up and re cable it -- then boot and voila! I'm back up. >> THEN, add back any incremental while running in the meantime.... > >What will hapen if the HD crashes while you are copying it? You can end >upp with bad content in files without you knowing it. > >rsync is probably better than dd. > Well that would really be a bad day....! But, that can happen when copying to anything... tape for instance... dump... tar... dunno about rsync whether it would survive with a good copy. But, in my case, as I said, I copy tars over NFS to other machines. So, as a fallback in that extreme example (never had that one in 14 years...but anything can happen), I resinstall the OS on a new HD and then copy back my latest backups from the other machines. So, in between an extreme case, I can recover and be running within minutes with my "DD" method.... Best regards, Jack L. Stone, Administrator SageOne Net http://www.sage-one.net jackstone@sage-one.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message