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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. Computer data storage - Wikipedia

   en.wikipedia.org/wiki/Computer_data_storage

   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. The central processing unit (CPU) of a computer is what manipulates data by performing computations.

6. Disk encryption - Wikipedia

   en.wikipedia.org/wiki/Disk_encryption

   Disk encryption is a technology which protects information by converting it into code that cannot be deciphered easily by unauthorized people or processes. Disk encryption uses disk encryption software or hardware to encrypt every bit of data that goes on a disk or disk volume. It is used to prevent unauthorized access to data storage.

7. List of file systems - Wikipedia

   en.wikipedia.org/wiki/List_of_file_systems

   Shared-disk file systems (also called shared-storage file systems, SAN file system, Clustered file system or even cluster file systems) are primarily used in a storage area network where all nodes directly access the block storage where the file system is located. This makes it possible for nodes to fail without affecting access to the file ...