[OpenAFS] fine-grained incrementals?

John S. Bucy bucy-openafs-info@gloop.org
Tue, 1 Feb 2005 14:50:04 -0500


On Tue, Feb 01, 2005 at 08:39:55PM +0100, Sergio Gelato wrote:

> > It seems like the dumps would have to (at a minimum) have all of the
> > objects appear in the same order every time for this to work reasonably.

...
 
> I've been glancing at rdiff-backup recently (along with a few other tools).
> The main advantages of vos dump are that (a) it knows about AFS-specific
> metadata like ACLs, and (b) it may be able to keep track of file renames
> within a volume (although I haven't checked that it actually does). But
> maybe, if one were given a tool to extract all AFS metadata from a volume, 
> the rest could be handled with rdiff-backup's mechanism of computing xdeltas 
> on individual files, not on the entire dumpset at once.

looking at src/volser/dumpstuff.c, it appears that dumps are done in
ascending vnode order.  AFAIK, rename is a first-class operation so it should 
only dirty the source and dest dirs.



john