From owner-freebsd-questions Sun Dec 5 16:35:26 1999 Delivered-To: freebsd-questions@freebsd.org Received: from monterosa.urbanet.ch (monterosa.urbanet.ch [195.202.193.104]) by hub.freebsd.org (Postfix) with SMTP id 88FDE14D6E for ; Sun, 5 Dec 1999 16:35:23 -0800 (PST) (envelope-from ahmed_benani@urbanet.ch) Received: (qmail 26021 invoked from network); 6 Dec 1999 00:35:22 -0000 Received: from unknown (HELO ?195.202.204.137?) (195.202.204.137) by monterosa.urbanet.ch with SMTP; 6 Dec 1999 00:35:22 -0000 X-Mailer: Microsoft Outlook Express for Macintosh - 4.01 (295) Date: Mon, 06 Dec 1999 01:34:14 +0100 Subject: Re : Is my backup system sane? From: "Ahmed Benani" To: cjclark@home.com, "Paul D. Schmidt" Cc: freebsd-questions@FreeBSD.ORG Mime-version: 1.0 X-Priority: 3 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: quoted-printable Message-Id: <19991206003523.88FDE14D6E@hub.freebsd.org> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG STOP SENDING YOUR MESSAGES I RECEIVED MORE THAN 200 PER DAY AND I NEVER UBSCRIBE TO YOUR LIST: THANK YOU FOR YOUR COOPERATION ahmed_benani@urbanet.ch ---------- >De=A0: "Crist J. Clark" >=C0 : pds@uberhacker.org (Paul D. Schmidt) >Cc : freebsd-questions@FreeBSD.ORG >Objet=A0: Re: Is my backup system sane? >Date=A0: Dim 5 d=E9c 1999 20:42 > >Paul D. Schmidt wrote, >> I do a level 0 dump at the end of the month >> >> I then cycle through 4 (or 5 if necessary) "Sunday" tapes doing level 1 >> backups >> >> Then Monday-Saturday I do a level 2 backup to the proper tape for the da= y... > >There is a little trade-off here. If a file changes once on Monday and >never again during the week, it is still going to get backed up every >day of the week. For the simplicity of your scheme you pay by having >the size of that level 2 backup grow monotonically. > >If for your system(s) the size is not really a factor, then I don't >see why the simplicity trade might be worth it for you. > >I assume from the way you phrased some things that you are backing up >soley for full-system recovery (to return the machine to its last >functioning state) after a catastrophic event. However, if >you also back up to save old "snapshots" (when a luser comes to you, "I >accidently deleted a file last week, is it backed up somewhere?") of >the system, that may call for a more complex approach. >-- >Crist J. Clark cjclark@home.com > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-questions" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message