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Article #8777Re: Why does MS-DOS BACKUP introduce CHKDSK errors?
From: Kenneth R. Ballou
Date: Tue, 11 Nov 1986 19:46
Date: Tue, 11 Nov 1986 19:46
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In article <2233@ecsvax.UUCP> unbent@ecsvax.UUCP (Jay F. Rosenberg) writes: > >... I would have thought that making a backup involved only >*reading* directories, not fiddling with them, so how did things get >changed? One of the attribute bits associated with a file is the 'archive' bit. It is set when a file is created or modified. Its purpose is to indicate to BACKUP any files changed since the last backup. Hence, BACKUP clears this bit as it churns (all right, crawls) along; this indeed involves writing in directories (indirectly, using some DOS function). -------- Kenneth R. Ballou ...!ucbvax!brahms!ballou Dept. of Mathematics ballou@brahms.berkeley.EDU University of California Berkeley, California 94720
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!decvax!ucbvax!cartan!brahms!ballou From: ballou@brahms (Kenneth R. Ballou) Newsgroups: net.micro.pc Subject: Re: Why does MS-DOS BACKUP introduce CHKDSK errors? Message-ID: <247@cartan.Berkeley.EDU> Date: Tue, 11-Nov-86 14:46:24 EST Article-I.D.: cartan.247 Posted: Tue Nov 11 14:46:24 1986 Date-Received: Tue, 11-Nov-86 23:04:03 EST References: <2233@ecsvax.UUCP> Sender: daemon@cartan.Berkeley.EDU Reply-To: ballou@brahms (Kenneth R. Ballou) Distribution: na Organization: Math Dept. UC Berkeley Lines: 17 Keywords: backup, chkdsk, cross link, error