Date: Wed, 19 Mar 2003 13:01:54 +0100 (CET) From: "Hartmann, O." <ohartman@klima.physik.uni-mainz.de> To: freebsd-questions@freebsd.org Subject: WRITE FILEMARKS. CDB: 10 0 0 0 1 0 MEDIUM ERROR asc:3b,0 Message-ID: <20030319125002.J458@klima.physik.uni-mainz.de>
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Hello. Since FreeBSD 4.6.2 I receive on one of our systems which does backups on a HP Sure Store 6x40i Cardridge handler DAT tape using afbackup the following error when tape end has been reached: (sa0:sym0:0:5:0): WRITE FILEMARKS. CDB: 10 0 0 0 1 0 (sa0:sym0:0:5:0): MEDIUM ERROR asc:3b,0 (sa0:sym0:0:5:0): Sequential positioning error (sa0:sym0:0:5:0): failed to write terminating filemark(s) (sa0:sym0:0:5:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state. (sa0:sym0:0:5:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state. The tape unit gets cleaned every 6 tapes or earlier, the tape cardrdges are original HP tapes. I changed several tapes because I thought the could be demaged but with no effect. It is still the same. Other tapes out of the 54 tapes in the backup set do not show this error, other do. Can you explain what kind of error the kernel shows and on what this could rely on? I made a very corious observation during the switch from FreeBSD 4.2 towards 4.6.X. We moved back to 4.2 once and all these errors disappeared, when got back to 4.6.2 they were present as well as before, means: the error came with 4.6.2! I checked the newsgroups and found several articles describing this error and the occurence with the change of 4.6 to 4.6.X. But no solution, no explanation. What has been changed in the drivers? Has anyone any idea? Thanks in advance, Oliver -- MfG O. Hartmann ohartman@mail.physik.uni-mainz.de ------------------------------------------------------------------ Systemadministration des Institutes fuer Physik der Atmosphaere (IPA) ------------------------------------------------------------------ Johannes Gutenberg Universitaet Mainz Becherweg 21 55099 Mainz Tel: +496131/3924662 (Maschinenraum) Tel: +496131/3924144 (Buero) FAX: +496131/3923532 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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