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Date: Mon, 8 May 2000 00:00:56 -0400
From: "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com>
To: freebsd-questions@freebsd.org
Subject: Lost sa0?
Message-ID: <20000508000056.H23187@cc942873-a.ewndsr1.nj.home.com>
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I have been trying to get a tape jukebox to work. The jukebox has been
a breeze to work with actually, but the tape drive is giving me
headaches. Now it seems like it has completely stopped responding,

  # mt status
  mt: /dev/nrsa0: Device not configured

However,

  # dmesg | grep sa0
  sa0 at aha0 bus 0 target 5 lun 0
  sa0: <EXABYTE EXB-85058SQANXR7 0781> Removable Sequential Access SCSI-2 device 
  sa0: 5.000MB/s transfers (5.000MHz, offset 8)

And,

  # camcontrol devlist
  <EXABYTE EXB-85058SQANXR7 0781>    at scbus0 target 5 lun 0 (pass0,sa0)
  <EXABYTE EXB-10i 1.5>              at scbus0 target 6 lun 0 (pass1,ch0)

I've tried rescanning the bus and reseting it to no avail.

I will load the tape in the drive and try to use the status one more
time.

  # chio status
  picker 0: 
  slot 0: <ACCESS,FULL>
  slot 1: <ACCESS,FULL>
  slot 2: <ACCESS,FULL>
  slot 3: <ACCESS,FULL>
  slot 4: <ACCESS,FULL>
  slot 5: <ACCESS,FULL>
  slot 6: <ACCESS,FULL>
  slot 7: <ACCESS,FULL>
  slot 8: <ACCESS,FULL>
  slot 9: <ACCESS>
  drive 0: <ACCESS,FULL>
  # chio move drive 0 drive 0
  # chio status
  picker 0: 
  slot 0: <ACCESS,FULL>
  slot 1: <ACCESS,FULL>
  slot 2: <ACCESS,FULL>
  slot 3: <ACCESS,FULL>
  slot 4: <ACCESS,FULL>
  slot 5: <ACCESS,FULL>
  slot 6: <ACCESS,FULL>
  slot 7: <ACCESS,FULL>
  slot 8: <ACCESS,FULL>
  slot 9: <ACCESS>
  drive 0: <FULL>
  # mt status
  mt: /dev/nrsa0: Device not configured

I had managed to use the drive, but then it started doing this,

  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): SPACE. CDB: 11 1 ff ff ff 0 
  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): MEDIUM ERROR info?:8000 asc:9,0
  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): Track following error
  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): unable to backspace over one of double filemarks at end of tape
  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): it is possible that this device needs a SA_QUIRK_1FM quirk set for it
  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state.
  May  6 23:14:14 pc206 /kernel: (sa0:aha0:0:5:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state.
  May  6 23:16:12 pc206 /kernel: (sa0:aha0:0:5:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state.

And now it seems to be unusable. What pray tell is the SA_QUIRK_1FM
(kernel config option I assume), and do I need to set it? 
-- 
Crist J. Clark                           cjclark@home.com


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