Bacula-users

Re: [Bacula-users] DVD backup

2010-03-31 21:30:26
Subject: Re: [Bacula-users] DVD backup
From: Phil Stracchino <alaric AT metrocast DOT net>
To: bacula-users AT lists.sourceforge DOT net
Date: Wed, 31 Mar 2010 21:27:36 -0400
On 03/31/10 19:59, Jari Fredriksson wrote:
> On 1.4.2010 2:10, Mads Rasmussen wrote:
>> I’m having trouble configuring bacula to backup on DVDs – I know it’s
>> not the best solution and I will buy a tape drive but I wanted to play
>> around with bacula in the mean time.
>>
>> I try using bconsole to run a new job but I never get around to writing
>> something to DVD
>>
> 
> Your configuration seems OK to me. However, I have never allowed Bacula
> to "autolabel" my volumes, I labeled them manually in bconsole before
> hand. Maybe you have do so too, as it seems to wait a named volume.
> 
> But.
> 
> When I converted from DAT to DVD some 1 and a half years ago, I could
> not get the latest versions of Bacula working! There were always
> something, different problems with different versions of Bacula.
> 
> Finally someone told that version 2.0.2 works for for him, and I
> downloaded and compiled that.
> 
> And I have used it then, and never looked back. I strongly believe that
> 2.4.x or later will not work.

Will not work with what?  Will not work with a DVD writer?  Will not
work, period?  Will not autolabel volumes?

I have had disk volume autolabeling working with no problems since
v2.4.something (which is when I first used it), and am now using 5.0.1
and it's still working.

DVD support is another issue.  Direct DVD writer support was deprecated
in Bacula some time ago and is explicitly unmaintained and unsupported,
because it turns out to be so problematic.  The recommended method of
backing up to DVD media using Bacula is to create 4.7GB (or 9.4GB, for
dual-layer) disk volumes and then separately burn them to DVD outside of
Bacula.

In any case, with modern disk sizes, backing up any non-trivial dataset
from fractional-terabyte-and-larger disks to DVDs has become as
impractical as backing up fractional-gigabyte-and-larger disks to floppy
did, except that it's even slower in proportion to the size of the dataset.

(Yes, I remember sitting there for three or four hours at a time doing
nothing but swap floppy disks every fifty seconds or so.  You couldn't
even get anything done in between swaps.)

-- 
  Phil Stracchino, CDK#2     DoD#299792458     ICBM: 43.5607, -71.355
  alaric AT caerllewys DOT net   alaric AT metrocast DOT net   phil AT 
co.ordinate DOT org
         Renaissance Man, Unix ronin, Perl hacker, Free Stater
                 It's not the years, it's the mileage.

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