Amanda-Users

Re: Defining backup levels

2006-08-16 15:35:21
Subject: Re: Defining backup levels
From: Anne Wilson <cannewilson AT tiscali.co DOT uk>
To: amanda-users AT amanda DOT org
Date: Wed, 16 Aug 2006 19:26:29 +0100
On Wednesday 16 August 2006 18:29, Joshua Baker-LePain wrote:
> On Wed, 16 Aug 2006 at 6:17pm, Anne Wilson wrote
>
> > What exactly is meant by backup levels 1 & 2?  For instance, when a
> > backup bumps to level 2, does that mean that the last level1 backup has
> > all the changes since level0, and the level 2 backups will have
> > everything since the bump date?
>
> 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.
>
I had read that, but still wasn't entirely sure, probably because I read it 
when I was still struggling to understand several other things at the same 
time.

> IOW, a level 2 only grabs stuff that has changed since the last level 1.

That's what I thought.  Thanks for the clarification and reassurance

Anne

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