• direct-attached storage (DAS)

    Direct-attached storage (DAS) is computer storage that is directly attached to one computer or server and is not, without special support, directly accessible to other ones.

  • delta differencing

    Delta differencing is an incremental approach to backup that only backs up blocks that have changed after the first full backup. The differences are recorded in files called deltas.

  • network-attached storage (NAS)

    Network-attached storage (NAS) is a dedicated hard disk storage device that provides file-based data storage services to other devices on the network.

  • auxiliary storage

    Auxiliary storage is all addressable data storage that is not currently in a computer's main storage or memory.

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  • storage distance extension

    Storage distance extension refers to any of several different technologies that allow data communication in Fibre Channel storage area networks (SANs) over long spans of fiber optic cable. 

  • SerDes (serializer/deserializer)

    A SerDes or serializer/deserializer is an integrated circuit (IC or chip) transceiver that converts parallel data to serial data and vice-versa. 

  • storage encryption

    Storage encryption is the use of encryption/decryption of backed-up and archived data, both in transit and on storage media. 

  • SAN file system

    A SAN file system (that is, a storage area network file system) is programming that enables the sharing of the same copies of files stored on common storage media among multiple servers that may have different operating systems. 

  • storage area management (SAM)

    Storage area management (SAM) is a still-evolving set of procedures, services, and standards for comprehensively managing the infrastructure of a storage area network (SAN), including all components within all servers, the disk arrays, the tape libra... 

  • intelligent switch

    An intelligent switch is a high-level storage area network (SAN) routing switch that provides features such as storage virtualization, quality of service (QoS), remote mirroring, data sharing, protocol conversion, and advanced security. 

  • bare metal restore

    In disaster recovery, a bare metal restore is the process of reformatting a computer from scratch after a catastrophic failure. 

  • tiered storage

    Tiered storage is the assignment of different categories of data to different types of storage media in order to reduce total storage cost. 

  • NAS accelerator

    A NAS accelerator (network-attached storage accelerator) is a printed circuit card that offloads TCP/IP processing from a microprocessor. 

  • zoned-bit recording (ZBR)

    Zoned-bit recording (ZBR) is a method of physically optimizing the utilization of a hard drive by placing more sectors in the outer tracks than in the inner tracks.