DSE Multi-Instance 

DSE Multi-Instance supports multiple DataStax Enterprise nodes on a single host machine to leverage large server capabilities.

DSE Multi-Instance supports multiple DataStax Enterprise nodes on a single host machine to leverage large server capabilities.

DSE Multi-Instance enables use of existing large hardware, supports scaling, and reduces hardware and monitoring costs.

Benefits 

Simplifies configuration Administration, installation, and configuration of DataStax Enterprise nodes on a single host machine are more easily managed.
Effectively utilizes larger server resources Running multiple DataStax Enterprise nodes on a large host machine enables optimal use of RAM, CPU, and so on.
Supports scaling Simplifies scaling with multiple DataStax Enterprise nodes on a single large host machine.