Enclosures
An enclosure is the basic housing unit for the system. It is the rack-mounted hardware that contains all the main components of the system: canisters, drives, and power supplies.
The system has two different types of enclosures: control enclosures and expansion enclosures. A control enclosure manages your storage systems, communicates with the host, and manages interfaces. The system supports one control enclosure with up to nine expansion enclosures.
An expansion enclosure houses the following additional hardware: power supply units (PSUs), canisters, and drives. Enclosure objects report the connectivity of the enclosure.