[jboss-as7-dev] Running a cluster using a single AS 7 distribution

Hi all devs, While doing some experiments with clustering, I can see that it's fairly easy with AS7 to set up a cluster of standalone servers using the same AS distribution. That can be achieved using a server port offset and assigning a different data.dir to every instance in a cluster. Is this considered safe way to run a cluster (maybe recommended for a development environment) or does it need tweaking some more parameters ? Thanks a lot Francesco