Primary Storage or Storage Hardware

	Disk arrays Find information about disk arrays, disk storage systems that contain multiple disk drives. Disk arrays offer RAID and virtualization functionality. Disk arrays include controllers, cache memory, enclosures and power supplies.
	Disk drives Disk drives used in enterprise-level disk arrays are SAS, SATA and Fibre Channel, 3.5-inch or 2.5-inch, they now store up to 1 TB. Read news about hard disk drive technology on this topic page.
	RAID RAID data storage technology divides and replicates data among two or more hard disk drives to achieve greater levels of I/O performance, data reliability and larger data volume sizes. Find news and resources pertaining to the different RAID levels on this topic page.

	SEE ALSO - Topics Related to Primary Storage or Storage Hardware:  SAN (storage area network), Data Backup, Data Storage Management, NAS (network attached storage), Storage Strategy, Data Protection

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