On Tue, Jan 03, 2006 at 04:47:15PM -0700, Mark.Donaldson AT cexp DOT com wrote:
> Anybody know the order of operation for the search/exclude process for
> incremental backups?
> 
> I'm doing a backup of a parent filesystem that has exclusions for some
> massive subdirectories with millions of small files.  Incremental backups of
> this parent filesystem seem to take a very long time.  Does NB, to anybody's
> knowlege, build a list of all changed files then apply the exclusion rule or
> does it do the opposite.
> 
> Example: I backup "/parent" and exclude sub1 & sub2 (they're handled in a
> different way in a different policy).
> 
> /parent
> /parent/sub1  <<Millions of files
> /parent/sub2  <<Millions of files
> /parent/sub3  <<Thousands of files
> 
> Do sub1 & sub2 get scanned for changed files, unnecessarily expanding my
> backup times?

It sure seems to on NB 5.0MP6.  I've got a similar case (RWare has
hundreds of thousands of files in /var) and the backups take forever.
We should probably log this as a bug if it hasn't been reported already.

        .../Ed

-- 
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org