From owner-freebsd-hackers Sun Sep 7 08:50:41 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id IAA25713 for hackers-outgoing; Sun, 7 Sep 1997 08:50:41 -0700 (PDT) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id IAA25708 for ; Sun, 7 Sep 1997 08:50:34 -0700 (PDT) Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id RAA20135 for hackers@FreeBSD.ORG; Sun, 7 Sep 1997 17:50:33 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.8.7/8.8.5) id RAA12844; Sun, 7 Sep 1997 17:22:01 +0200 (MET DST) Message-ID: <19970907172200.ZJ25357@uriah.heep.sax.de> Date: Sun, 7 Sep 1997 17:22:00 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: hackers@FreeBSD.ORG Subject: Re: Tape question References: <19970907103022.YU02721@uriah.heep.sax.de> <199709071422.HAA08365@usr09.primenet.com> X-Mailer: Mutt 0.60_p2-3,5,8-9 Mime-Version: 1.0 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199709071422.HAA08365@usr09.primenet.com>; from Terry Lambert on Sep 7, 1997 14:22:01 +0000 Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk As Terry Lambert wrote: > > This must be a problem with the Exabyte then. It works fine for me, > > with a Tandberg TDC4222, and a QIC-525 cartridge (QIC-150, of course, > > doesn't work since it's fixed-length blocking). > > > > Also, i know that restore(8) basically relies on this feature in order > > to determine the tape block size. ISTR that this once was broken, but > > that's been quite some time ago. > > I think it is a driver issue. > > I would hesitate to actually call it a problem, however. > > Effectively, one driver does a "sync" for you, and the other does > not: Terry, Terry. You ought not to talk about things you neither understand nor verify before posting. Both (mine and his) were the same drivers (st(4)), and all this has nothing to do with dd(1)'s sync option or such. Raw devices write just what is being passed down to a write(2) syscall. Better talk about things you've got some clue about... The SCSI tape driver definately doesn't belong to this (and no, you don't need to change the subject now to match your claims). -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)