On Wed, Aug 08, 2007 at 09:09:50AM -0400, Brian Cuttler wrote:
> What really happens when GTAR INDEXING is enabled ?

Briefly, the client 'tees' the tar output to another invocation of tar
with the -t (table of contents) option, which lists each file in the
dump, one per line.  That information is sent to the server in a stream
parallel to the data stream, where the dumper writes it to the gnu-tar
index files directory, possibly compressing it first.

I hope that helps!

Dustin

-- 
        Dustin J. Mitchell
        Storage Software Engineer, Zmanda, Inc.
        http://www.zmanda.com/