Re: [Bacula-users] btape error

[Kern S. <ke...@si...>]

You seem to be getting read errors when Bacula re-reads what was
written. Just by chance, last night, I added a minimal write/re-read
test as well as a tape positioning test to btape.  If you can download
the current CVS, I would recommend you do so, build the new btape and
run it to see what it says.  The only previous test I modified was the
forward space file test, which I changed not to try to space off the end
of the medium as it was causing some perhaps confusing errors
needlessly.

Best regards, Kern

On Fri, 2004-02-13 at 02:19, Dana J. Bolden wrote:
> Hi all,
> 
> I am trying to set Bacula up on my Fedora Core 1 system  - so far so 
> good.  It's been a very long time since I used Linux and built any thing 
> from source, but that part seemed to go OK.  I'm trying to use a Seagate 
> IDE Travan 5 tape drive.  I realize this may not be the best choice of 
> drives, but it's what I have available and it seems very close to 
> working.  I have adjusted the bacula-sd.conf based on the initial results 
> of a btape test run to include the following:
> 
> # DJB device setup for the Travan 5 Drive
> Device {
>          Name="Travan5"
>          Media Type = "TR5"
>          Archive Device = /dev/ht0
>          AutomaticMount = yes;
>          Always Open = Yes;
>          RemovableMedia = Yes;
>          RandomAccess = No;
>          Hardware End of Medium = no
>          Fast Forward Space File = no
>          BSF at EOM = yes
> 
> }
> 
> The Hardware "End of Medium = no", "Fast Forward Space File = no" and "BSF 
> at EOM = yes" are based on a btape test.
> 
> I don't understand how to correct the following error from the btape test run:
> 
> 
> 
> >Now the important part, I am going to attempt to append to the tape.
> >
> >btape: btape.c:1132 Wrote one record of 64412 bytes.
> >btape: btape.c:1134 Wrote block to device.
> >btape: btape.c:427 Wrote 1 EOF to /dev/ht0
> >btape: btape.c:397 Rewound /dev/ht0
> >Done appending, there should be no I/O errors
> >
> >Doing Bacula scan of blocks:
> >btape: btape Error: block.c:248 Expected block-id BB01 or BB02, got . 
> >Buffer discarded.
> >Error reading block. ERR=block.c:248 Expected block-id BB01 or BB02, got . 
> >Buffer discarded.
> >
> >Total files=0, blocks=0, bytes = 0
> >End scanning the tape.
> >We should be in file 4. I am at file 0. This is NOT correct!!!!
> >
> >The above Bacula scan should have output identical to what follows.
> >Please double check it ...
> >=== Sample correct output ===
> >1 block of 64448 bytes in file 1
> >End of File mark.
> >2 blocks of 64448 bytes in file 2
> >End of File mark.
> >3 blocks of 64448 bytes in file 3
> >End of File mark.
> >1 block of 64448 bytes in file 4
> >End of File mark.
> >Total files=4, blocks=7, bytes = 451,136
> >=== End sample correct output ===
> >
> >If the above scan output is not identical to the
> >sample output, you MUST correct the problem
> >or Bacula will not be able to write multiple Jobs to
> >the tape.
> 
> 
> All of the tests before this section run OK and the "Forward space files 
> test" that runs after this section also finishes OK.
> 
> 
> Any suggestions would be very much appreciated!
> 
> Thanks,
> Dana
> 
> 
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