From owner-freebsd-hackers Tue May 5 18:40:00 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id SAA28309 for freebsd-hackers-outgoing; Tue, 5 May 1998 18:40:00 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from smtp03.primenet.com (root@smtp03.primenet.com [206.165.6.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id SAA28251 for ; Tue, 5 May 1998 18:39:49 -0700 (PDT) (envelope-from tlambert@usr02.primenet.com) Received: (from daemon@localhost) by smtp03.primenet.com (8.8.8/8.8.8) id SAA29489; Tue, 5 May 1998 18:28:28 -0700 (MST) Received: from usr02.primenet.com(206.165.6.202) via SMTP by smtp03.primenet.com, id smtpd029467; Tue May 5 18:28:27 1998 Received: (from tlambert@localhost) by usr02.primenet.com (8.8.5/8.8.5) id SAA21183; Tue, 5 May 1998 18:28:22 -0700 (MST) From: Terry Lambert Message-Id: <199805060128.SAA21183@usr02.primenet.com> Subject: Re: Network problem with 2.2.6-STABLE To: tom@sdf.com (Tom) Date: Wed, 6 May 1998 01:28:22 +0000 (GMT) Cc: tlambert@primenet.com, beng@lcs.mit.edu, dec@phoenix.its.rpi.edu, freebsd-hackers@FreeBSD.ORG In-Reply-To: from "Tom" at May 5, 98 09:02:39 am X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > 1) You are not supposed to use it on mounted FS's. > > Really? That isn't in the manual. It also makes it useless for > 24x7 servers. Why not? Unmount a mirrored drive in a mirror array, and back it up offline. In general, the FS should be quiescent, at the very least. Most people run dump/restore in single user mode. > > Meanwhile, break you FS's up; your backups will take less time, too. > > 4GB filesystems are rather limiting. It places a large burden on the > administrator to constantly balance storage needs. No thanks. I don't know where you keep getting 4G. 2^32 * 512 = 1TB. > I'm not sure why backing up 8 x 4GB filesystems, as opposed to 1 x 32GB > filesystem would be faster. It's not. Backing up 6 x 4GB filesystems is faster than 1 x32GB. The point is that you only need to back up "live" data, not data that hasn't changed (ie: /usr/local needs backing up less frequently than /usr/home). > I think you need to donate your time at site that runs some 24x7 > servers, so you can some reality experience. I'll ignore this. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message