Digital archive

Is a repository of digital information objects. Digital archives can be a sophisticated, multi-tiered storage system, or simply the drive c on a computer.

Disk array

Is a hardware element that contains a large group of hard disk drives (HDDs). It has an architecture that improves speed and increases data protection.

Disk array subsystem

A disk subsystem which includes control software with the ability to organize its disks as disk arrays.

Disk block

The unit on which data is stored and retrieved on a disk with a fixed block architecture.

Disk cache

Is a mechanism that improves the time it takes to read from or write to a hard disk. It is usually included as part of the hard disk.

Disk striping

A technique that spreads data over multiple disk drives. It quickly retrieves data from disk storage. The computer system breaks a body of data into units and spreads these units across the available disks.