Jeffrey J. Kosowsky wrote:
> Holger Parplies wrote at about 00:24:56 +0100 on Tuesday, December 9, 2008:
>  > Hi,
>  > 
>  > Mark Adams wrote on 2008-12-08 14:37:54 -0700 [Re: [BackupPC-users] 
> BackupFilesExcludes for Linux]:
>  > > I think I spotted a mistake in my own speculative config.  See below.
>  > 
>  > right, and there's a second one along the same line ...
>  > 
>  > > [...]
>  > > > $Conf{BackupFilesOnly} = {
>  > > >   '/mnt/share' => [
>  > > >     'images',
>  > > >     'Photos'
>  > > >   ]
>  > > >  '/' => [
>  > > >    'etc'
>  > > >   ]
>  > > >  '/home' => [
>  > > >   'madams'
>  > > >   ]
>  > > > };
>  > > > $Conf{BackupFilesExclude} = {
>  > > >  '/home/madams' => ['/torrent', '/Download'],
>  > 
>  > This should be
>  > 
>  >      '/home' => [ '/maddams/torrent', '/maddams/Download' ],
>  >  
>  > > >  };
>  > > > $Conf{RsyncShareName} = [
>  > > >   '/mnt/share', '/home', '/'
>  > [edited to match your correction]
>  > > > ];
>  > > > $Conf{ClientNameAlias} = '192.168.1.106';
>  > 
>  > As Matthias probably meant to point out, you can achieve the same with
>  > 
>  >     $Conf {RsyncShareName} = [ '/etc', '/home/maddams', 
> '/mnt/share/images',
>  >                           '/mnt/share/Photos' ];
>  >     $Conf {BackupFilesExclude} = { '/home/maddams' => [ '/torrent',
>  >                                                    '/Download'] };
>  > 
>  > or even
>  > 
>  >     $Conf {RsyncShareName} = [ '/' ];
>  >     $Conf {BackupFilesOnly} = {
>  >    '/' => [ '/etc', '/home/maddams', '/mnt/share/images',
>  >             '/mnt/share/Photos' ],
>  >     };
>  >     $Conf {BackupFilesExclude} = {
>  >    '/' => [ '/home/maddams/torrent', '/home/maddams/Download' ],
>  >     };
>  > 
>  > This is, of course, just as speculative as your config, but I believe it
>  > *should* work that way :-).
>  > 
>  > The important part is that the hash keys in BackupFilesOnly and
>  > BackupFilesExclude need to match your {RsyncShareName}s exactly, else they
>  > will simply be ignored (there is no magic that determines that 
> '/home/maddams'
>  > lies within the '/home' share). Aside from that, *with rsync and tar* (not
>  > rsyncd and smb) you are rather free to split your paths into share names 
> and
>  > BackupFilesOnly entries any way you like. Less shares probably means less
>  > overhead and a backup definition that is easier to understand. If you use
>  > '--one-file-system', you will need extra shares for anything on different 
> file
>  > systems (probably '/home' and '/mnt/share' in your case).
>  > 
>
> Also (I believe that) using multiple share names on the same
> filesystem will not preserve hard links that are split across the
> share names. So, if you are backing up your linux partitions and want
> to preserve hard links then you should probably keep all the key root
> partitions on the same share (please correct me if I am wrong but I
> don't see how rsync would otherwise know about the hard links since
> each share is done independently).
>
>   
Thanks for the tip Jeff.  I think I understand what you're saying here 
about preserving hard links, but I'm still just learning a thing or two 
about rsync. Just for the sake of simplicity, I adapted Holger's design 
as below.  I stated an incremental backup of that config about 30 
minutes ago and things look good at this point.  I believe it's a winner.

I've got two more machines to configure for backup and then I just ride 
it for another six months until I have to upgrade again.  Thanks to all 
you folks for the help. I really do appreciate it.


# cat spike.pl
$Conf {RsyncShareName} = [ '/' ];
$Conf {BackupFilesOnly} = {
        '/' => [ '/etc', '/home/madams', '/mnt/share/images', 
'/mnt/share/Photos' ],
       };
$Conf {BackupFilesExclude} = {
        '/' => [ '/home/madams/torrent', '/home/madams/Download' ],
       };


-- 
Mark E. Adams

Random Musing: 
Did you know that for the price of a 280-Z you can buy two Z-80's?
                -- P.J. Plauger



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