Date: Sun, 29 Oct 1995 20:25:55 -0500 (EST) From: "Jonathan M. Bresler" <jmb@kryten.Atinc.COM> To: Frank Durda IV <uhclem%nemesis@fw.ast.com> Cc: current@freebsd.org Subject: Re: WANGDAT strangeness Message-ID: <Pine.3.89.9510292026.I20975-0100000@kryten.atinc.com> In-Reply-To: <m0t9hkn-000ItnC@nemesis.lonestar.org>
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On Sun, 29 Oct 1995, Frank Durda IV wrote: > [0]a WangDAT tape drive that under 2.0.5 won't let you remove the media until > [0]you reboot the system, OR you can issue a mt offline, remove the media, and > [0]then reboot to get the drive to load new media - that really stinks and > > [1] this problem must be unique to WangDAT or at least non-exabyte > [1]4mm tape drives. i use a 4mm for daily backup. unload the tape with > [1]"/usr/bin/mt -f /dev/rst0 rewoffl". load a new tape every morning and > [1]haev no problems at all. > The DAT drive has a READY and an ACCESS light. Under SCO, the READY light > would blink yellow while loading/unloading, then remain green until the > media is unmounted. The ACCESS light only blinked during > commands/transfers, etc. So when the drive is idle (tape loaded or unloaded), > the ACCESS light is dark. > > On 2.0.5-R, the ACCESS light is off until you touch the drive, then it > goes on solid and remains on regardless of activity. Once the drive is > touched, the front-panel eject button no longer works. (From external > appearances, it acts like it is always in the middle of processing a > command from the host.) [snip] > I have been using the DAT drive for about four years under SCO UNIX with > their standard driver, so I know that the drive works well. the wangdat drive may have broken firmware...my toshiba cdrom does. i had to patch the kernel to overcome it...the drive claimed to be a hard disk! how about sending in the dmesg output, boot with -v, please. > > Frank Durda IV <uhclem@nemesis.lonestar.org>|"The Knights who say "LETNi" > or uhclem%nemesis@fw.ast.com (Fastest Route)| demand... A SEGMENT REGISTER!!!" > ...letni!rwsys!nemesis!uhclem |"A what?" > ...decvax!fw.ast.com!nemesis!uhclem |"LETNi! LETNi! LETNi!" - 1983 okay--so what is letni? i didnt find it as a vax opcode..though bbcci and bbssi look kinda net. > > Jonathan M. Bresler jmb@kryten.atinc.com | Analysis & Technology, Inc. FreeBSD Postmaster jmb@FreeBSD.Org | 2341 Jeff Davis Hwy play go. | Arlington, VA 22202 ride bike. hack FreeBSD.--ah the good life | 703-418-2800 x346
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