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2. Network-attached storage - Wikipedia

   en.wikipedia.org/wiki/Network-attached_storage

   Network-attached storage ( NAS) is a file-level (as opposed to block-level storage) computer data storage server connected to a computer network providing data access to a heterogeneous group of clients. The term "NAS" can refer to both the technology and systems involved, or a specialized device built for such functionality (as unlike ...

3. Direct-access storage device - Wikipedia

   en.wikipedia.org/wiki/Direct-access_storage_device

   Direct-access storage device. A direct-access storage device ( DASD) (pronounced / ˈdæzdiː /) is a secondary storage device in which "each physical record has a discrete location and a unique address". The term was coined by IBM to describe devices that allowed random access to data, the main examples being drum memory and hard disk drives. [1]

4. Storage area network - Wikipedia

   en.wikipedia.org/wiki/Storage_area_network

   Layer 0. Physical. A storage area network ( SAN) or storage network is a computer network which provides access to consolidated, block-level data storage. SANs are primarily used to access data storage devices, such as disk arrays and tape libraries from servers so that the devices appear to the operating system as direct-attached storage.

5. Virtual Storage Access Method - Wikipedia

   en.wikipedia.org/wiki/Virtual_storage_access_method

   Virtual Storage Access Method. Virtual Storage Access Method ( VSAM) [1] is an IBM direct-access storage device (DASD) file storage access method, first used in the OS/VS1, OS/VS2 Release 1 (SVS) and Release 2 (MVS) operating systems, later used throughout the Multiple Virtual Storage (MVS) architecture and now in z/OS.

6. Computer data storage - Wikipedia

   en.wikipedia.org/wiki/Computer_data_storage

   When used within a robotic tape library, it is classified as tertiary storage instead. Computer data storage or digital data storage is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers. [1] : 15–16.

7. Memory hierarchy - Wikipedia

   en.wikipedia.org/wiki/Memory_hierarchy

   In computer organisation, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and capacity are related, the levels may also be distinguished by their performance and controlling technologies. [1] Memory hierarchy affects performance in computer architectural design, algorithm ...

8. Network File System - Wikipedia

   en.wikipedia.org/wiki/Network_File_System

   Network File System ( NFS) is a distributed file system protocol originally developed by Sun Microsystems (Sun) in 1984, [1] allowing a user on a client computer to access files over a computer network much like local storage is accessed. NFS, like many other protocols, builds on the Open Network Computing Remote Procedure Call (ONC RPC) system.

9. Ceph (software) - Wikipedia

   en.wikipedia.org/wiki/Ceph_(software)

   Ceph (pronounced / ˈsɛf /) is a free and open-source software-defined storage platform that provides object storage, [7] block storage, and file storage built on a common distributed cluster foundation. Ceph provides completely distributed operation without a single point of failure and scalability to the exabyte level, and is freely available.