On Tue, Jul 15, 2008 at 8:47 AM, John Drescher <drescherjm AT gmail DOT com> 
wrote:
> Is this a VXA PacketLoader?
>
>> These were the previous messages:
>>
>> 14-jul 22:00 servfich-dir JobId 73: Start Backup JobId 73,
>> Job=Backup_de_Trabajo_Diario.2008-07-14_22.00.40
>> 14-jul 22:00 servfich-dir JobId 73: There are no more Jobs associated with
>> Volume "A0000001". Marking it purged.
>> 14-jul 22:00 servfich-dir JobId 73: All records pruned from Volume
>> "A0000001"; marking it "Purged"
>> 14-jul 22:00 servfich-dir JobId 73: Recycled volume "A0000001"
>> 14-jul 22:00 servfich-sd JobId 73: 3307 Issuing autochanger "unload slot 5,
>> drive 0" command.
>
> What tape is now in slot 5?
>
>> 14-jul 22:04 servfich-dir JobId 73: Using Device "Driver1"
>> 14-jul 22:04 servfich-sd JobId 73: 3301 Issuing autochanger "loaded? drive
>> 0" command.
>> 14-jul 22:04 servfich-sd JobId 73: 3302 Autochanger "loaded? drive 0",
>> result: nothing loaded.
>> 14-jul 22:04 servfich-sd JobId 73: 3304 Issuing autochanger "load slot 1,
>> drive 0" command.
>> 14-jul 22:04 servfich-sd JobId 73: 3305 Autochanger "load slot 1, drive 0",
>> status is OK.
>> 14-jul 22:04 servfich-sd JobId 73: 3301 Issuing autochanger "loaded? drive
>> 0" command.
>> 14-jul 22:04 servfich-sd JobId 73: 3302 Autochanger "loaded? drive 0",
>> result is Slot 1.
>> 14-jul 22:04 servfich-sd JobId 73: Error: block.c:995 Read error on fd=6 at
>> file:blk 0:0 on device "Driver1" (/dev/nst0). ERR=Input/output error.
>> 14-jul 22:04 servfich-sd JobId 73: Error: block.c:995 Read error on fd=6 at
>> file:blk 0:0 on device "Driver1" (/dev/nst0). ERR=Input/output error.
>> 14-jul 22:04 servfich-sd JobId 73: Error: block.c:995 Read error on fd=6 at
>> file:blk 0:0 on device "Driver1" (/dev/nst0). ERR=Input/output error.
>> 14-jul 22:04 servfich-sd JobId 73: Error: block.c:995 Read error on fd=6 at
>> file:blk 0:0 on device "Driver1" (/dev/nst0). ERR=Input/output error.
>> 14-jul 22:04 servfich-sd JobId 73: Error: block.c:995 Read error on fd=6 at
>> file:blk 0:0 on device "Driver1" (/dev/nst0). ERR=Input/output error.
>> 14-jul 22:04 servfich-sd JobId 73: Please mount Volume "A0000001" or label a
>>
>>
> Unless tape A0000001 is in slot 5 this looks like you need to modify
> the mtx-changer script to add a delay before wait_for_drive command.
> The problem I see here is it took 4 minutes to unload whatever tape
> was in the drive then it somehow loaded a tape in less than 1 minute.
> To me a 1 minute load is too way fast and the tape probably was not
> ready when the mtx-changer script exited.
>
I just noticed that you had a thread about this and the solution was
to edit the Wait_For_Drive because it is broken on ubuntu. I suggest
not to do that but to use a fixed delay instead of detecting when the
drive is ready.

I would uncomment the sleep 15 from here:

#
# Increase the sleep time if you have a slow device
# or remove the sleep and add the following:
#     sleep 15
      wait_for_drive $device
      exit $rtn


and make it

#
# Increase the sleep time if you have a slow device
# or remove the sleep and add the following:
      sleep 120
      wait_for_drive $device
      exit $rtn


This will give the tape drive at least 2 minutes to settle which
should be enough in most cases.

John

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