Amanda-Users

Re: Data loss if configuration of amanda.conf is not right.

2005-01-19 10:07:59
Subject: Re: Data loss if configuration of amanda.conf is not right.
From: Vicki Stanfield <vicki AT progeny DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 19 Jan 2005 09:57:22 -0500
On Tue, 2005-01-18 at 10:10 -0500, Jon LaBadie wrote:
> On Tue, Jan 18, 2005 at 09:39:56AM -0500, Vicki Stanfield wrote:
> > I have set up an alternate amanda.conf to run with two tape drives
> > instead of the one that I currently have. I am wondering whether there
> > is some way to rerun an incremental backup if I run it and something in
> > my new configuration is out of whack. Since there is stateful data
> > involved which presumably would not be available after the backup ran,
> > is there a way to get it back so that problem could be corrected and the
> > backup rerun?
> 
> In trying to think of potential problems, I don't really come up with
> any which would cause amanda to think it has had a successful run
> when it failed unless some component was "lying" about its success;
> e.g. a tape system saying it was accepting the data when the tape
> was sitting there broken and spinning.  So I don't think the stateful
> data would reflect a false situation.  Maybe you or someone else
> would think of other scenarios than I've come up with.
> 
> Although amdump, which starts a backup, is normally run from a cron job,
> there is no reason why you can't start it manually if the cron job fails.
> 
> jl

Thanks. I was unsure of whether this was a potential problem or not. As
long as Amanda tells me that there was a problem and dumps to the spool,
I am happy.

Vicki