If you install the DB2® pureScale® environment in a virtual environment, you gain the flexibility to create multiple DB2 pureScale configurations for use in your testing and educational environments. You can also use this flexibility in technical demonstrations.
A DB2 pureScale cluster is typically configured to run in a multiple physical server environment to take advantage of the high availability and scalability features. However, it is possible to configure a DB2 pureScale instance to run in a single physical server environment for testing and demonstration purposes. In a single physical server environment, you can use local disks to host theDB2 pureScale instance.
You must use storage area network (SAN) storage in a multiple physical server environment.