Is it possible to add an option to rsync "--create-db" to create a database
file/s for local directory listings - before the connection to the server -
and/or remote directory listing to speedup the compare/delete/transfer process.
The problem that I have is when I download large number of files ( eg: CPAN
Archive it's about 154000 files ) it takes about 7 - 8 hours to complete,
especially if the drive is NFS drive. Mayby this will solve the timeout problems.

Options:

--create-db     --->  Create database
--db-file=      --->  database path/file name
--update-db     --->  Update database files ( for cron )
--db-from-file= --->  Config file for db files

config db file format:
----------------------
[path to db-file]/[file]  [path to local directory]

The last 2 options will be useful for mirror sites