Bacula-users

Re: [Bacula-users] Verify tape

2012-06-14 18:08:11
Subject: Re: [Bacula-users] Verify tape
From: John Drescher <drescherjm AT gmail DOT com>
To: newsletter-ale AT guest DOT net, bacula-users <Bacula-users AT lists.sourceforge DOT net>
Date: Thu, 14 Jun 2012 13:17:57 -0400
On Thu, Jun 14, 2012 at 1:03 PM, Konstantin Khomoutov
<flatworm AT users.sourceforge DOT net> wrote:
> On Thu, 14 Jun 2012 16:29:58 +0200
> Gandalf Corvotempesta <newsletter-ale AT guest DOT net> wrote:
>
> [...]
>> How can I verify the copy? Can I list the contents of my tapes?
> Sure: `bls` to list the tape contents and `bextract` to fetch something
> for test.
>
> Note that `bextract` is *very* slow unless you feed it with a
> bootstrap file generated by your backup job (assuming the tape has many
> jobs).
>
> `bls` is also slow--on my LTO-4 drive connected via fiber channel to
> the host, its full run through one tape (with quite many jobs and very
> large number of (small) files) it takes more than 2 hours to complete,
> so be prepared.
>

Also there is a verify command that allows you to compare the tape to
the database and the filesystem to the database however I believe
these did not work as expected until bacula-5.2.X. What I mean by did
not work as expected was bacula always verified the last job on the
client even though you selected some other job.

John

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