Dell EMC ScaleIO: Software-only server-based storage area network (SAN) that converges storage and compute resources to form a single-layer, enterprise-grade storage product. ScaleIO storage is elastic and delivers linearly scalable performance. Its scale-out server SAN architecture can grow from a few to thousands of servers.
ScaleIO uses servers’ direct-attached storage (DAS) and aggregates all disks into a global, shared, block storage. ScaleIO features single-layer compute and storage architecture without requiring additional hardware or cooling/power/space.
Scale out from a few to thousands of servers for both storage and compute - from just a couple of terabytes to multiple petabytes
Expand or shrink capacity or performance simply, easily, and nondisruptively on demand, without capacity planning or data migration. Grow in small or large increments and pay as you grow, running on any server and with any storage media.
Take advantage of massively parallel I/O processing, with all servers participating and sharing I/O loads. By adding servers, you can increase capacity and processing power linearly, leveraging fast parallel rebuild and rebalance without interruption to I/O.