TAPE(HW) XENIX System V TAPE(HW)
Name
tape - Cartridge tape device.
Description
The tape device implements the interface with a tape drive.
Typically, the tar(C), cpio(C), dd(C), backup(C), dump(C),
or restore(C) commands are used to access a tape drive.
A single tape drive with a raw (character, non-blocking)
interface is supported. There are two standard tape device
types. Devices beginning with the ``r'' prefix, (for ``raw
device''), should be used for most normal tape work, while
devices with the ``n'' prefix, (``for no rewind on hold''),
should be used for storing and restoring multiple files.
The following table summarizes the base naming conventions
for the tape drives supported:
ct0,1 QIC24 unit 0,1
ct2,3 QIC11 unit 0,1
ctmini floppy controller-based cartridge tape
mt0,1 reel to reel unit 0,1 1600 bpi
mt2,3 reel to reel unit 0,1 800 bpi
mt4,5 reel to reel unit 0,1 6250 bpi
tape(C) describes the commands used to access tape drives.
Files
/dev/rct0
/dev/nrct0
/dev/rct2
/dev/nrct2
/dev/rctmini
Notes
After certain tape operations are executed, the system
returns a prompt before the tape controller has finished its
operation. If the user enters another tape command too
quickly, a ``device busy'' error is returned until the tape
device is finished with its previous operation.
Periodic tape cartridge retensioning and tape head cleaning
are necessary for continued error-free operation of the tape
subsystem. Use tape(C), to retension the tape.
See Also
backup (C), cpio (C), dd (C), dump (C), format (C), tape
(C), tar (C) restore (C),
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