Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!ll-xn!husc6!panda!teddy!jpn From: jpn@teddy.UUCP (John P. Nelson) Newsgroups: comp.unix.questions Subject: Re: File system problems Message-ID: <4221@teddy.UUCP> Date: Mon, 27-Jul-87 14:02:41 EDT Article-I.D.: teddy.4221 Posted: Mon Jul 27 14:02:41 1987 Date-Received: Tue, 28-Jul-87 07:15:32 EDT References: <8467@brl-adm.ARPA> <1052@mind.UUCP> Reply-To: jpn@teddy.UUCP (John P. Nelson) Organization: GenRad, Inc., Concord, Mass. Lines: 20 >In article <8467@brl-adm.ARPA> KFL@AI.AI.MIT.EDU (Keith F. Lynch) writes: >>He has also said that after using doing a restore of a zero level dump, >>it is necessary to immediately do another zero level dump In article <1052@mind.UUCP> barry@mind.UUCP (Barry Lustig) writes: >And even more garbage. Most of what the "Sun representative" is supposed to have said was just that: garbage. Interestingly, this part is NOT garbage. Oh, not doing another level 0 dump will not trash the filesystem, but it COULD render all subsequent incremental backups useless. To quote from the "restore" manual page: A level zero dump must be done after a full restore. Because restore runs in user mode, it has no control over inode allocation; this means that restore repositions the files, although it does not change their contents. Thus, a full dump must be done to get a new set of directories reflecting the new file positions, so that later incremental dumps will be correct.