All data is managed through the primary storage controller, deployed in redundant pairs. To expand capacity, you can mix and match from any of the five supported expansion enclosures, depending on your specific performance, cost or density needs. Options are available for ultra-dense (and new high-performance SAS enclosures. Adding a new enclosure is simple the new drives can be automatically assimilated into the existing virtualized pool, or set up as their own standalone pool. Data-in-place upgrades make it easy to change controllers and other key components, or migrate from legacy SC Series arrays.