Hi,
On 4/23/2007 10:17 PM, Christoph Haas wrote:
> Thanks, Arno, for your reply.
>
> On Mon, Apr 23, 2007 at 09:32:56PM +0200, Arno Lehmann wrote:
>> On 4/23/2007 8:53 PM, Christoph Haas wrote:
>>> I have just replaced my working old DDS-3 streamer with an AIT-1
>>> streamer (dmesg says "SDX-300C"). First I ran "btape AIT" and entered
>>> "test" to check if Bacula is happy with that drive. Everything went well
>> ...
>>> So everything went well. However when I try to label a tape from
>>> bconsole or just enter "stat storage=AIT" the console hangs. I have to
>>> kill the console process in another windows to make it quit. CTRL-C or
>>> CTRL-Z do not work.
>>> Relevant part of my /etc/bacula/bacula-sd.conf:
>>>
>>> ---------------------------------
>>> Device {
>>> Name = AIT
>>> Media Type = AIT1
>>> Archive Device = /dev/nst0
>>> AutomaticMount = yes;
>>> AlwaysOpen = yes;
>>> RemovableMedia = yes;
>>> RandomAccess = no;
>>> VolumePollInterval = 1 minute
>> Try removing this...
>>
>>> OfflineOnUnmount = yes
>> ... and this and see if it works then.
>>
>>> CloseOnPoll = no
>>> MaximumOpenWait = 2 days
>>> }
>>> ---------------------------------
>
> Are these options bad?
Not per se, but I suspected the polling might interfere with your manual
work. The suggestion was just for troubleshooting.
> I want Bacula to auto-detect if the needed tape
> has been inserted without manual unmount/mount actions.
I never set up Bacula like this, but I get the impression it can be done
:-) All the installations I handle do have more or less reliable
operators who have to handle tapes anyway, so it's not really a problem
if they have to issue a console command. Or call a script, or click an
icon... whatever works for the site.
>>> Reading and writing using "dd" works well. Writing files and restoring
>>> them via "tar cvzf /dev/nst0 ..." and "tar xvzf /dev/nst0" works well.
>>> (It didn't work early today. I think I ran "mt -f /dev/nst0 setblk 0" or
>>> something on it while looking for solutions on the usenet. Maybe that
>>> has changed something regarding the block size.)
>> Definitely, but setting the block size to zero is usually the right
>> thing to do.
>
> I see. Sounds like "0" is the meaning of "auto-detect" or
> "machine-default" or something like that.
A little more complex... it usually means variable block size, so a
program can write data in (more or less) arbitrary blocks and doesn't
have to write blocks of a fixed length.
>>> So I started the storage daemon with "-d100 -f" but it looks that after
>>> a few seconds the device is suddenly busy although lsof says that it's
>>> the bacula-sd itself blocking the device:
>> Probably polling...
>
> That was the helping hint. It turned out I had the old DDS-3 streamer
> still configured as a device pointing to /dev/nst0, too. And although I
> wasn't using that Bacula device that must have been the reason that the
> storage daemon complained that the device is busy. I removed the DDS-3
> device and have just been able to label a tape.
I guess it's agood thing you did all this testing... otherwise, you
might have ended up with unusable tapes, or something...
Arno
> Hooray! :)
>
> Thanks.
>
> Christoph
>
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IT-Service Lehmann [EMAIL PROTECTED]
Arno Lehmann http://www.its-lehmann.de
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