Running multiple instances of ElasticSearch on one VPS

Hi,

We're just starting to use ElasticSearch in our application, and so far it's working great, so thanks for all the hard work on it, its really good out of the box. We had no problem getting the service up and running thanks to the GitHub documentation.

One question about running multiple instances though. We have a fairly large VPS that we run two concurrent tomcat instances on which functionally are completely isolated from each other. We'd like to potentially run two instances of ElasticSearch as well on the same machine. Is this as simple as creating seperate init scripts and changing settings there as to where the data/logging is for each instance?

I googled around a bit, and searched this list and didn't find much on this.

Thanks!

Hunter