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List:       bacula-users
Subject:    Re: [Bacula-users] Multiplexing multiple jobs to tape
From:       Chris Howells <chris+bacula () chrishowells ! co ! uk>
Date:       2007-08-31 13:21:48
Message-ID: 46D815EC.8040600 () chrishowells ! co ! uk
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Mike Ruskai wrote:
> Since tape is a linear medium, and not random-access, the only plausible 
> way for what you suggest to work would be for Bacula to interleave data 
> blocks from two or more backup jobs.

Yes.

> At a minimum, this would require 
> writing incredible amounts of data to the backend database to keep track 
> of which blocks on a given tape belong to which portions of a given file 
> from a given backup.

I had imagined that each bacula block contained a header from which the 
job that it belonged to could be identified.

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