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The PS4110 Series arrays are based on a virtualized, modular storage architecture that enables you to purchase only the storage you need, when you need it. Sophisticated yet simple management features speed SAN configuration, and built-in intelligence capabilities sense network connections, automatically build RAID sets and conduct system health checks. All PS Series arrays work together to automatically manage data, load balance across all resources or seamlessly expand the storage pool when you add a new array. The PS4110 series includes fault-tolerant capabilities through use of fully redundant and hot-swappable controllers, fan trays, power supplies and disk drives.