Thanks Jonathan, We will have a try.

2010/6/30 Jonathan Ellis <jbellis@gmail.com>
On Mon, Jun 28, 2010 at 10:11 PM, albert_e <dongzz82@gmail.com> wrote:
> Hi, all
>
> We have several nodes in DC1 and DC2 and we want to move all nodes in DC2 to
> a new DC3, also IPs will be changed. The whole progress will last about 1-2
> days.
>
> Can we simply stop all nodes in DC2, move to DC3, chage IP config in
> storage-conf.xml then start all nodes in DC3?

This will work if you upgrade to 0.6.3 first.

--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com