On Wednesday 08 June 2005 15:57, Sebastian Stark wrote:
> Thanks for answering.
>
> On Wednesday 08 June 2005 14:55, Kern Sibbald wrote:
> > > I am pretty sure it's just a few bytes that got corrupted. What can I
> > > do access my data?
> >
> > I suspect that you are confused about the difference in how Bacula
> > handles writing a tape and reading a tape. It is clear that the tape is
> > damaged and that Bacula cannot write on it without recycling the tape.
> > However, it does not appear you have tried to use Bacula to restore from
> > the tape.
>
> That's true. But how can I make sure that I'm really able to restore the
> very last byte of the last file? If I just restore some file I'm still not
> sure that _everything_ is okay.
Restore the last job on the tape.
>
> > - Simply start using another tape for your appends, possibly redoing any
> > saves in progress during the power failure (as determined from the
> > catalog). If Bacula was writing the tape when the power outage occurred
> > unless you are very cleaver, it is not going to ever try to read from the
> > Job/Jobs it was writing.
>
> That would mean we loose at least three weeks of incremental backups and I
> want to avoid that.
I don't see why that should happen. The data on the tape before the last job
is most likely valid and can be used by Bacula.
> Besides this, how would I find out what jobs are
> affected? SQL query?
list jobs
(get the jobids of the jobs when the power fail happened and if you want more
info do)
llist jobid=nnn
>
> We are trying a bcopy to a file storage right now.
Bad strategy. You are wasting your time IMO.
> If only the last bacula
> file is corrupted (as it seems), wouldn't it be the best way to truncate it
> and redo only that last job?
Re-run the job as I previously suggested.
> What kind of data is missing if bacula does
> not find the EOD?
If you take my suggestions, Bacula will never look for the EOD, so the
question is moot (does not apply).
> If the bcopy succeeds we could simply modify the virtual
> tape with a hex editor and bcopy it back to a clean tape.
Sorry but that is not possible.
--
Best regards,
Kern
(">
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