4.3BSD-UWisc/man/cat4/tmscp.4

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TMSCP(4)            UNIX Programmer's Manual             TMSCP(4)



NAME
     tmscp - DEC TMSCP magtape interface

SYNOPSIS
     controller tmscp0 at uba? csr 0174500 vector tmscpintr
     tape tms0 at tmscp0 drive 0

DESCRIPTION
     Tape controllers compatible with the DEC Tape Mass Storage
     Control Protocol (TMSCP) architecture such as the TU81 and
     the TK50 provide a standard tape drive interface as
     described in _m_t_i_o(4).  The controller communicates with the
     host through a packet oriented protocol.  Consult the file
     <vax/tmscp.h> for a detailed description of this protocol.

DIAGNOSTICS
     tmscp controller failed to init.  The controller initializa-
     tion procedure failed.  This probably indicates a hardware
     problem.

     tmscp%d: sa 0%o, state %d.  (Additional status information
     given after a hard I/O error.) The values of the controller
     status register and the internal driver state are printed.

     tmscp%d: random interrupt ignored.  An unexpected interrupt
     was received (e.g. when no i/o was pending).  The interrupt
     is ignored.

     tmscp%d:  interrupt in unknown state %d ignored.  An inter-
     rupt was received when the driver was in an unknown internal
     state.  Indicates a hardware problem or a driver bug.

     tmscp%d:  fatal error (0%o).  The controller detected a
     ``fatal error'' in the status returned to the host.  The
     contents of the status register are displayed.

     OFFLINE.  (Additional status information given after a hard
     I/O error.) A hard I/O error occurred because the drive was
     not on-line.

     The following errors are interpretations of TMSCP error mes-
     sages returned by the controller to the host.  Each is pre-
     ceded by either tmscp%d: hard error or tmscp%d: soft error.

     controller error, event 0%o.

     host memory access error, event 0%o, addr 0%o.

     tape transfer error, unit %d, grp 0x%x, event 0%o.

     STI error, unit %d, event 0%o.




Printed 12/27/86          June 4, 1986                          1






TMSCP(4)            UNIX Programmer's Manual             TMSCP(4)



     STI Drive Error Log, unit %d, event 0%o.

     STI Formatter Error Log, unit %d, event 0%o.

     unknown error, unit %d, format 0%o, event 0%o.

SEE ALSO
     mt(1), tar(1), tp(1), mtio(4), tm(4), ts(4), ut(4), dmesg(8)















































Printed 12/27/86          June 4, 1986                          2