From owner-freebsd-scsi Sat Apr 17 15:10:15 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from praxis.medicusnet.de (praxis.medicusnet.de [194.74.137.21]) by hub.freebsd.org (Postfix) with ESMTP id E1F9215351 for ; Sat, 17 Apr 1999 15:10:12 -0700 (PDT) (envelope-from maulwurf@subloch.medicusnet.de) Received: from subloch.medicusnet.de (uucp@localhost) by praxis.medicusnet.de (8.8.8/8.8.7) with UUCP id AAA14655 for freebsd-scsi@freebsd.org; Sun, 18 Apr 1999 00:07:48 +0200 Received: by subloch.medicusnet.de (CrossPoint v3.11 R/C2188); 18 Apr 1999 00:08:36 +0200 Date: 18 Apr 1999 00:08:00 +0200 From: maulwurf@subloch.medicusnet.de (Stefan Huerter) To: freebsd-scsi@freebsd.org Cc: mjacob@feral.com Cc: joerg_wunsch@uriah.heep.sax.de Cc: martin.kraft@fal.de Message-ID: <7F6ncL5zoRB@subloch.medicusnet.de> In-Reply-To: Subject: Re: i/o error with larger QIC X-Mailer: CrossPoint v3.11 R/C2188 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Organization: die wahre Antwort: 42 Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Guckux Matthew > > What's that?!?!?! > > > > I typed "mt blocksize 0", and -- the first time -- I could tar -t > > and tar -x a file from my old DC 6525. Great! So far :-( > > > > I extracted a small file close to the beginning of the tape. It > > took just a few seconds (as usual) and the file was on my disk. > > > > But after that, the tape didn't rewind and stop, as it did in > > former time, it now is rewinding forwards and backwards since > > more than 30 minutes. > > This is what I'm worried about. If you're in *variable* mode, the > drive is faking it. QIC is a fixed block format. If you set it to > variable mode, I think it tries to guess the block layout, and it > sounds like it's having a rough go of it. > > > > > What a surprise > > > > Martin Kraft > > > > > > P.S. 35 minutes. Just another turn. I will kill the tar process, > > because I don't have a fire extinguisher at home ... Very strange > > ... > > > > Do you remember what blocksize you *wrote* these tapes with? If you > do, set the blocksize for the drive fixed at that size and try > read with the tar command (setting to the blocksize you used to > write the tape). I really wish I had manuals for this drive so I > could try and figure what they're trying to do. I made a few tests before I get this tip from Joerg, so I tried to use tar with the blocksize of 10240bytes, but this won't work. I get only I/O errors... Bye Stefan --- Hoffnung ist verantwortlich fuer den Vorwaertstrieb eines Menschen. Wird diese zerstoert, wird am Menschen etwas zerstoert. Ueberlebt er dieses und setzt sich damit auseinander, wird er gestaerkt wieder erwachen. (Stefan H.) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message