Even the free version supports up to 3-node clusters via the proprietary ADMS1H+ gossip protocol. You can distribute your dataset across multiple VX2 machines without licensing fees.
This article was fact-checked against ADMS1H+ v3.2.1 running on VX2/OS 2.1. Specifications subject to change; refer to official documentation for the latest updates. Even the free version supports up to 3-node