Networker

Re: [Networker] mtime directive question?

2009-06-18 20:06:01
Subject: Re: [Networker] mtime directive question?
From: A Darren Dunham <ddunham AT TAOS DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Fri, 19 Jun 2009 00:01:25 +0000
On Thu, Jun 18, 2009 at 07:50:46PM -0400, George Sinclair wrote:
> Kind of a stupid question here (sigh ...) but have to ask.
> 
> I have a client side directive (/data/dir1/.nsr) with the following:
> 
> +mtimeasm: .?* *
> 
> We created this because there were problems wherein the change of file 
> status time (not modtime) was getting affected on a ton of files every 
> night, and this was causing huge incrementals. By instituting this 
> directive, the problems went away, and we were subsequently only backing 
> up files whose mod time changed as opposed to the default which goes by 
> ctime (that's what I call it).
> 
> OK, so what happens if we run a level full on /data? Will a level full 
> still capture all the files regardless of their ctimes or mtimes, or 
> would this directive force the full to only capture files whose modtimes 
> had changed?

The first one.  Normal backups (uasm) and this one (mtimeasm) compare
the timestamps against the time of the previous relevant backup to
decide if it should be gathered.  A full backup has no previous relevant
backup, so they'll never ignore a file.

> I want to say that the full will get everything regardless except for 
> anything that is being skipped (e.g. null', 'skip') by some other directive.

Right.  

-- 
Darren

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