From owner-freebsd-hackers Fri Jul 19 10: 7:26 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 75DE137B400 for ; Fri, 19 Jul 2002 10:07:23 -0700 (PDT) Received: from search.sparks.net (d-207-5-180-136.gwi.net [207.5.180.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0C41C43E58 for ; Fri, 19 Jul 2002 10:07:23 -0700 (PDT) (envelope-from dmiller@sparks.net) Received: by search.sparks.net (Postfix, from userid 100) id F2886D987; Fri, 19 Jul 2002 13:06:47 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by search.sparks.net (Postfix) with ESMTP id DBBCBD984; Fri, 19 Jul 2002 13:06:47 -0400 (EDT) Date: Fri, 19 Jul 2002 13:06:47 -0400 (EDT) From: David Miller To: "Brandon D. Valentine" Cc: David Malone , "Mark W. Krentel" , freebsd-hackers@freebsd.org Subject: Re: dump on mounted fs In-Reply-To: <20020719091153.F18913-100000@dallben> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, 19 Jul 2002, Brandon D. Valentine wrote: > On Fri, 19 Jul 2002, David Malone wrote: > > >Maybe I should resign to using tar on Linux. Can tar be made not > >to modify the ctime, mtime and atime? > > This is what the general consensus on the amanda-users list has been for > some time now. Linux ext2 dump/restore is massively broken. If you're > using something like XFS though you can probably get away with > xfs_dump/restore. Personally I prefer to use tar anyway. A tar archive > is restorable on most any unix without requiring a vendor/filesystem > specific restore binary be available. That's one less point of failure > in restoring the backups. The only place where tar really won't cut it > is when you're using special filesystem features not traditionally > supported by unix, such as filesystem ACLs. A year ago there was a problem with backing up files larger than either 2GB or 4GB, I forget which. A beta version of star would handle it, but all the native versions of tar and gtar failed. That's often not a problem, but if you're backing up db container files on big drives it's an issue. --- David To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message