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I have a minor problem with a QIC WANGTEK 51000 SCSI tape unit (2.5 GB
native, 5 GB compressed) on an ADAPTEC 2940.  If there is a tape in
the unit at boot time, the device configuration fails, and I cant
access the drive;

  % mt status
  mt: /dev/rst0: Device not configured

If no cartridge in situ at boot, then OK. Does anyone know a way to
overcome this? - the machine sometime needs to be rebooted whilst
unattended.

Rex
    
 NetBSD 1.2 CPU: Pentium (GenuineIntel 586-class CPU)
----------Boot with no tape in unit-------------------------

 ahc0 at pci0 dev 10 function 0 
 ahc0: interrupting at irq 11
 ahc0: Reading SEEPROM...done.
 ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
 ahc0: Reseting Channel A
 ahc0: Downloading Sequencer Program...Done
 scsibus0 at ahc0
 ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
 sd0 at scsibus0 targ 0 lun 0: <FUJITSU, M2952S-512, 0122> SCSI2 0/direct fixed
 sd0: 2291MB, 5714 cyl, 5 head, 164 sec, 512 bytes/sec
 ahc0: target 1 synchronous at 5.0MHz, offset = 0xf
 cd0 at scsibus0 targ 1 lun 0: <MATSHITA, CD-ROM CR-504-J, SS17> SCSI2 5/cdrom removable
 ahc0: target 2 synchronous at 4.4MHz, offset = 0xe
 st0 at scsibus0 targ 2 lun 0: <WANGTEK, 51000  SCSI, B26C> SCSI2 1/sequential removable
 st0: drive empty

----------Boot with tape in unit----------------------------
 ahc0 at pci0 dev 10 function 0
 ahc0: interrupting at irq 11
 ahc0: Reading SEEPROM...done.
 ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
 ahc0: Reseting Channel A
 ahc0: Downloading Sequencer Program...Done
 scsibus0 at ahc0
 ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
 sd0 at scsibus0 targ 0 lun 0: <FUJITSU, M2952S-512, 0122> SCSI2 0/direct fixed
 sd0: 2291MB, 5714 cyl, 5 head, 164 sec, 512 bytes/sec
 ahc0: target 1 synchronous at 5.0MHz, offset = 0xf
 cd0 at scsibus0 targ 1 lun 0: <MATSHITA, CD-ROM CR-504-J, SS17> SCSI2 5/cdrom removable
 ahc0: target 2 synchronous at 4.4MHz, offset = 0xe
 ahc0: board is not responding
 cmd fail
 probe(ahc0:2:0): timed out in dataout phase, SCSISIGI == 0x0
 probe(ahc0:2:0): BUS DEVICE RESET message queued.
 Bus Device Reset Message Sent
 probe(ahc0:2:0): Bus Device Reset delivered. 2 SCBs aborted


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Rex McMaster                       rmcm@ariel.unimelb.edu.au