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Definition: storage array

A group of hard drives or solid state drives (SSDs) built into a single unit. A storage array may be configured in a RAID architecture for redundancy or speed (see RAID). Also called a "drive array," a storage array generally refers to disks or SSDs; however, optical drives (CD, DVD, etc.) also come in multi-drive units (see optical disc library). See hard disk, SSD, JBOD, SAN, NAS and server farm.

A 84-Drive Hybrid Storage Array
This Ultrastar drive array can store 60 hard drives and 24 solid state drives (SSDs) in a 4U rack-mounted module for a total of 720 terabytes. (Image courtesy of Western Digital Corporation.)