mu man page on Ultrix

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mu(4)									 mu(4)

Name
       mu - TM78/TU78/9 magnetic tape interface

Syntax
       master mt0 at mba? drive ?
       tape mu0 at mt0 slave 0

Description
       Prior to Version 2.0, this device was referenced by

       The TM78/TU78/9 combination provides a standard tape drive interface as
       described in Only 1600 and 6250 bpi are supported; the TU78/9  runs  at
       125 ips and autoloads tapes.

Restrictions
       Only the raw tape is supported.

Diagnostics
       mu%d: no write ring.
       An  attempt  was made to write on the tape drive when no write ring was
       present.

       mu%d: not on line.
       An attempt was made to access the tape while it was off line.

       mu%d: hard error bn%d.
       A tape error occurred at block bn.  When possible, the driver will have
       retried	the  operation	that failed several times before reporting the
       error.  Additional register information may be gathered from the system
       error log file,

       mu%d: blank tape.
       An  attempt  was made to read a blank tape (a tape without even end-of-
       file marks).

       mu%d: off line.
       During an I/O operation, the device was set off line.

Files
       /dev/rmt???
       /dev/nrmt???

See Also
       mtio(4), nbuf(4), MAKEDEV(8), uerf(8)

				      VAX				 mu(4)
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