Amanda-Users

Re: Defining backup levels

2006-08-16 22:04:54
Subject: Re: Defining backup levels
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 16 Aug 2006 20:51:43 -0400
On Wed, Aug 16, 2006 at 08:23:51PM -0400, Greg Troxel wrote:
> 
> Joshua Baker-LePain <jlb17 AT duke DOT edu> writes:
> 
> > From 'man dump':
> >
> >        -level#
> >               The dump level (any integer). A level 0, full backup, guaran-
> >               tees  the  entire  file  system  is copied (but see also the 
> > -h
> >               option below). A level  number  above  0,  incremental backup,
> >               tells  dump  to  copy  all files new or modified since the 
> > last
> >               dump of a lower level. The default  level  is  9.  
> > Historically
> >               only levels 0 to 9 were usable in dump, this version is able 
> > to
> >               understand any integer as a dump level.
> >
> > IOW, a level 2 only grabs stuff that has changed since the last level 1.
> 
> I think if you do
> 
> 0 1 0 2
> 
> then the level 2 will dump things changed since the second 0.
> 

That is true, but ...
Amanda doesn't skip levels so it would not happen in amanda.
And amanda does not go up levels (except to 0) so the sequence

   0 1 2 3 4 2 

will not occur either.  Though done manually, that last level 2
would be be all since the second dump, a level 1.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)

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