With the SciDB Community Edition (GNU Affero license), you can load unlimited data, use all the core functionality, and run on machine or a cluster. Download it here , contribute here, and get support on the SciDB forum.

The Enterprise Edition (Paradigm4 license) includes additional software for commercial deployments:

• High Availability, Fault Tolerance, and Cluster Management
• User Authentication and Data Access Control
• Additional math and time-series functions
• Faster math performance (Intel MKL)
• Dynamic provisioning with ERGs (Elastic Resource Groups)