Storage Subsystem

A storage subsystem is a storage entity managed by storage management software. A storage subsystem consists of a collection of physical components (such as drives, controllers, fans, and power supplies) and logical components (such as arrays and logical drives).

A storage subsystem can span multiple physical enclosures. For example, several drive enclosures connected to a controller enclosure constitutes one storage subsystem. A unit that contains drives and a controller in a single enclosure is also one storage subsystem. A rackmount subsystem might contain more than one storage subsystem.

The term "storage subsystem" replaces the term RAID Module that was used in previous versions of this storage management software.