Actually, think what happens when you rsync across nfs...
Worst case:  you have two files, same length, but different modification times. - you 
read both, checksumming all the way, and they're identical.  You just generated as 
much traffic as if you'd transferred the entire file, without needing to.

The time trial would be much closer if the destination is empty.  then, rsync just 
builds the list of everything, and sends it.  You just lose time building the file 
list.  I have to keep a bunch of server appliances synchronized, so i mount them to a 
local server, them rsync from it across the wan.  Doing an initial population, i just 
use tar, and for touching up, i use the -W option.  If i've got to read both files in 
their entirety, i might as well just read one in its entirety, and write it over 
the other.

Tim Conway
[EMAIL PROTECTED]
303.682.4917
Philips Semiconductor - Colorado TC
1880 Industrial Circle
Suite D
Longmont, CO 80501

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