erm, high embarrassment mode

mt wasn't installed...

[root@sp-mirror-02 ~]# mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x44 (no translation).
Soft error count since last status=0
General status bits on (41010000):
 BOT ONLINE IM_REP_EN


however I think that some responsibility lies elsewhere, shouldn't the
bacula install rpm require mt as a pre-req ?


although you indicated
--------------------------------------------------------------------
wait_for_drive() {
  i=0
  while [ $i -le 300 ]; do  # Wait max 300 seconds
    if mt -f $1 status 2>&1 | grep "${ready}" >/dev/null 2>&1; then
      break
    fi
    debug "Device $1 - not ready, retrying..."
    sleep 1
    i=`expr $i + 1`
  done
}
--------------------------------------------------------------------
as the place to debug, it was actually

--------------------------------------------------------------------
case $cmd in
   unload)
      debug "Doing mtx -f $ctl unload $slot $drive"

      if test ${offline} -eq 1 ; then
        mt -f $device offline
      fi
      if test ${offline_sleep} -ne 0 ; then
        sleep ${offline_sleep}
      fi
      ${MTX} -f $ctl unload $slot $drive
      ;;

   load)
      debug "Doing mtx -f $ctl load $slot $drive"
      ${MTX} -f $ctl load $slot $drive
      rtn=$?
      if test ${load_sleep} -ne 0 ; then
        sleep ${load_sleep}
      fi
#      wait_for_drive $device
      sleep 60
      exit $rtn
      ;;

   list)

--------------------------------------------------------------------

that I had made the change

I'm going to revert the change and restest.

Cheers

Arne

On Sun, Feb 14, 2010 at 2:31 PM, John Drescher <drescherjm AT gmail DOT com> 
wrote:
> On Sun, Feb 14, 2010 at 8:16 AM, shouldbe q931
> <shouldbeq931 AT googlemail DOT com> wrote:
>> ooh, found this http://old.nabble.com/Bad-Autochanger-td15870476.html
>> and following the advice in the 2nd post from John M. Drescher
>>
>> ----------------------------------
>> If you believe the tape was successfully loaded in a slot then you
>> need to customize the mtx-changer script.
>>
>> Look at the code
>>
>> #     sleep 15
>>      wait_for_drive $device
>>      exit $rtn
>>      ;;
>>
>> I would comment out wait_for_drive and replace it with sleep 120. Turn
>> on some debugging in the script so you can see what is happening.
>> ----------------------------------
>> edited mtx-changer, ran autochanger again, and
>>
>> *autochanger
>>
>> Ah, I see you have an autochanger configured.
>> To test the autochanger you must have a blank tape
>>  that I can write on in Slot 1.
>>
>> Do you wish to continue with the Autochanger test? (y/n): y
>>
>>
>> === Autochanger test ===
>>
>> 3301 Issuing autochanger "loaded" command.
>> Slot 1 loaded. I am going to unload it.
>> 3302 Issuing autochanger "unload 1 0" command.
>> unload status=OK 0
>> 3303 Issuing autochanger "load 1 0" command.
>> 3303 Autochanger "load 1 0" status is OK.
>> btape: btape.c:476 open device "Certance" (/dev/st0): OK
>> btape: btape.c:1562 Rewound "Certance" (/dev/st0)
>> btape: btape.c:1569 Wrote EOF to "Certance" (/dev/st0)
>>
>> The test autochanger worked!!
>
> After that I would verify that the result is reproducible then try to
> determine the reason for the failure of the following code:
>
> wait_for_drive() {
>  i=0
>  while [ $i -le 300 ]; do  # Wait max 300 seconds
>    if mt -f $1 status 2>&1 | grep "${ready}" >/dev/null 2>&1; then
>      break
>    fi
>    debug "Device $1 - not ready, retrying..."
>    sleep 1
>    i=`expr $i + 1`
>  done
> }
>
> What this does is loops calling mt -f /dev/nst0 status
>
> and looks at the output for "ONLINE". If it finds "ONLINE" anywhere in
> the output it exits the loop otherwise it loops for a maximum of 300
> seconds.
>
> So the first step in fixing this for your system would be to
> mount a volume via the autochanger web interface and
> look at the output of
> mt -f /dev/nst0 status
>
> Does it output "ONLINE" in anywhere status after a tape is loaded?
>
> John
>

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