Messages in this thread | | | Date | Wed, 17 Sep 1997 08:50:34 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Re: SCSI Tape driver While we're at it QFA problems. |
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On Tue, 16 Sep 1997, Dave Cinege wrote:
> Since some tape problem have been bought up... > > I'm unable to space forward the tape on my DAT. It appears to move forward > to the desired place on the tape, but as soon as I try to access the tape it > rewinds back to block 0. (whether it is tar or just mt tell) > [SNIPPED]
The SCSI tape devices have a major and minor number. If you want the tape to stay where it was after using 'mt', you use the device with the minor number's high-bit set.
/dev/st0 9, 0 /dev/st1 9, 1 /dev/st3 9, 128 /dev/st4 9, 129
In this case /dev/st0 and /dev/st3 refer to the exact same drive. If you are using commands that require the state of the tape-drive to remain unchanged, you use /dev/st3. If you want the tape to rewind or, if supported unload, you use /dev/st0.
Cheers, DJ Richard B. Johnson Analogic Corporation Penguin : Linux version 2.1.54 on an i586 machine (66.15 BogoMips). Warning : It's hard to stay on the trailing edge of technology. Linux : Engineering tool Windows : Child's computer interface written in BASIC. Win-NT : Child's computer interface rewritten in C.
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