From owner-freebsd-scsi Sun Jul 6 00:51:40 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id AAA13090 for freebsd-scsi-outgoing; Sun, 6 Jul 1997 00:51:40 -0700 (PDT) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id AAA13085 for ; Sun, 6 Jul 1997 00:51:37 -0700 (PDT) Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id JAA20078; Sun, 6 Jul 1997 09:51:29 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.8.5/8.8.5) id JAA15819; Sun, 6 Jul 1997 09:30:53 +0200 (MET DST) Message-ID: <19970706093053.ZG59677@uriah.heep.sax.de> Date: Sun, 6 Jul 1997 09:30:53 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: scsi@FreeBSD.ORG Cc: kmitch@weenix.guru.org (Keith Mitchell) Subject: Re: Archive Viper and 3940UW (bad Drive?) References: <199707052152.PAA26449@pluto.plutotech.com> <199707060106.VAA12128@weenix.guru.org> 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) Sender: owner-freebsd-scsi@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk As Keith Mitchell wrote: > OK, that is what I thought originally, but then given that erasing them > "seemingly" solved the timeout problem I don't know what to think. What > does erasing a tape actually do? It doesn't take but a few seconds. This sounds wrong. For me, it makes an entire pass over the medium. This is also what i'm expecting. (Tandberg TDC4222, arbitrary QIC-150 cartridge.) I know erasing a tape takes forever on a DAT medium. QICs are faster here, since the erase head is really a quarter-inch head, erasing all the parallel tracks at once. QIC tapes are normally being erased before writing track 1 (i.e., while writing from the very beginning). -- 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. ;-)