I've followed instructions "Initializing a Cassandra Cluster on Amazon EC2 Using the DataStax AMI" (http://www.datastax.com/docs/1.1/install/install_ami) and successfully started new Cassandra instance.
Unfortunately, it's not possible to Stop it from Amazon Management Console. Only Terminate and Reboot actions are available.
Is there any way to Stop it?
If not, then what is the suggesting way to avoid extra cost from having running instance (currently we don't need, but we don't want to terminate it because that will lead to data loss).