mirror sites with sarge

[Siju George <sgeorge.ml@gmail.com>]

Hi,

To start with.

I have a set of folders "A" on a computer "Sarge1".
I have another computer "Sarge2" with a copy of the same set of folders "A".

The contents of the set of folders "A" on "Sarge1" gets deleted,
updated, modified continously.
How can I get those changes on to the set of folders "A" on "Sarge2"
as soon as possible??

i.e The changes to "A" on "Sarge1" should be propogated to "A" on
"Sarge2" as quickly as possible.

is running 

#rsync -avz root@Sarge1:A root@Sarge2:A

continously as a cronjob the best way to do it???

if so how will I give the password for "root" on "Sarge1" while
executing the above command  in a shell script as a cronjob??

Could someone please guide me if there are better ways of doing the
propagation of changes??

Thankyou so much

Kind Regards

Siju