Re: [Bacula-users] bscan will take...34 years!?!?

On Thu, Feb 21, 2013 at 5:09 PM, Michael Stauffer <mgstauff AT gmail DOT com> 
wrote:
> Hi everyone,
>
> So I've finally got my bscan running after your help in previous posts
> - thanks. But am worried that it's on track to take 34 years to
> complete!!
>
> I'm recreating a database from tapes after a hard-drive corruption.
>
> I'm using bacula 3.0.1 (I'll be upgrading in ~3 months, but first need
> to restore everything with this system).
>
> Here's my command:
>
> ./bscan -b /bacula/bscanVolsBootstrap.bsr -c
> /etc/bacula/bacula-sd.conf -v -s -m /dev/st0
>
> Questions:
>
> 1) I got the volume names for the bsr file from running 'mtx status'
> on the changer. Are these necessarily the same volume names used by
> bacula? They look familiar from what I saw in bacula before the
> catalog died.
>
> 2) About how long could the bscan take?
> I'm getting regular status updates like:
>   21-Feb 17:04 bscan JobId 0: End of file 1070 on device "LTO5-0"
>   (/dev/st0), Volume "L50001"
> After two hours, it's up to file 1070.

I believe that is the volume file. Which usually is 1 GB.

> Does 'file' mean actual individual files in the archive? Or something
> else? If it means individual files then I've calculated the bscan of
> all 35 tapes will take about 34 years!
>
> At maximum theoretical tape speed for LTO-5 compressed data, it would
> be 5 hours/tape, and not 340 days. So I'm assuming 'file' means
> something else, but what?
>
> Thanks,
> Michael
>
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John M. Drescher

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