problem on osx

[giacomo.ulivieri at unifi.it]

hi,
i work on mac os x 10.4 and use rsync command (on my while script) for
backup files on big 
network volume (Lacie) with public IP. For about 7 days it work fine
then i found a new 
destination directory: the old one was data and the new one is data-1.
Why? the command that i 
launch from termina is simply:

"rsync -a /!Trasferire /Volumes/data/ROC || echo -n"

have you any advice?

thank you 1000