Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!munnari!mulga!devel!gfm From: gfm@devel.cats.oz (Graham Menhennitt) Newsgroups: comp.sys.nsc.32k Subject: Re: ICM3216: appending on tapes. Message-ID: <258@devel.cats.oz> Date: Mon, 20-Jul-87 18:53:09 EDT Article-I.D.: devel.258 Posted: Mon Jul 20 18:53:09 1987 Date-Received: Wed, 22-Jul-87 06:37:12 EDT References: <1857@imag.UUCP> <885@nscpdc.NSC.COM> Reply-To: gfm@devel.cats.oz (Graham Menhennitt) Distribution: world Organization: Cats Co., Melbourne, Australia Lines: 19 In article <885@nscpdc.NSC.COM> joer@nscpdc.UUCP (Joe Rawlings) writes: > >There is a difference between the way an end of file (EOF) is marked and >the end of media (EOM) is marked on a cartridge tape. Skipping the >technical jargon, the EOM is basically two or more EOF markers. Using the >"mt fsf x" command will take the tape the the EOF marker corresponding to the If your tape device driver is written correctly you won't have this problem. The correct way of handling a close on a tape device that has been open for writing is to mark it with an EOM. As Joe says this is simply two EOF marks. The trick is that after writing the second mark the device driver should backspace the tape to the point between the two marks. Then, if the non-rewind tape device was used and the device is subsequently re-opened for writing, the second EOF will be overwritten and the tape will correctly have one EOF between the two files. -- Graham Menhennitt ACSnet: gfm@devel.cats.oz Networking II Project Manager UUCP: ...!seismo!munnari!devel.cats.oz!gfm Cats Co., Melbourne, Australia. Phone: +61 3 5224246