TQIS(4spp)          RISC/os Reference Manual           TQIS(4spp)



NAME
     tqis - M120 SCSI Tape

SYNOPSIS
     {
          "tqis",        tsinit,  tsopen,
          tsstrategy,   tsclose, tsioctl,
          DTTYPEBLOCK,
          DTFSAUTO,     "SCSI tape"
     }

DESCRIPTION
     Tqis is the interface to the tape drive(s) used in the M120
     system cabinet. It is possible to have other additional tape
     drives, i.e. in the expansion cabinet.  Tqis supports the
     on-board SCSI and DMA controller chips on the M120 system
     motherboard.  Due to the priority scheme on the controller,
     the tape drive is always installed as unit 6 (starting from
     zero). If there is a second tape drive, it is installed as
     unit 5. The standard drive is a 1/4 inch cartridge unit
     although in the future 1/2 inch reel-to-reel tapes could be
     used.

IOCTLS
     Tqis doesn't support any ioctl calls.

DIAGNOSTICS
     The following diagnostics are printed by the tqij driver:

     ts bad lun number %d
                    ts bad target number %d Verify lun and target
                    numbers numbers.

     ts: in use     Tape is a unique open device, so refuse if
                    already open.

     ts: init of fuji, amd chips failed

     ts: request sense ERROR
                    A request sense command was mandated through
                    a SCSI check condition but the request sense
                    command produced an error.

     ts: %s         ts%d: %s, failed open The open failed for
                    target %d. %s below specifies the problem
                    which falls in two classes: returned by a
                    SCSI drive or by the MIPS code driving the
                    fuji/amd chips.  /* SCSI Status (returned by
                    target) */ Check Condition Condition Met/Good
                    target is BUSY Intermediate/Good
                    Intermediate/Condition Met/Good Reservation
                    Conflict /* fuji/amd Status (MIPS driver



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TQIS(4spp)          RISC/os Reference Manual           TQIS(4spp)



                    messages) */ SCSI Parity Error Unrecoverable
                    Hardware Failure SCSI Timeout Error Selection
                    Timeout Error SCSI Phase Error

     ts: unit attention
                    Tape drive indicates unit attention (drive
                    was reset or cartidge changed).

     ts: SPACE cmd error
                    Error occurred while attempting to forward
                    space files.

SEE ALSO
     dkis(4spp)









































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