Enterprise storage, planning and management

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  • storage hypervisor

    A storage hypervisor, also called software-defined storage, is a marketing term for software that allows storage to be controlled centrally in a storage pool regardless of what hardware the storage is located on.   Definition

  • capacity sprawl

    Capacity sprawl, in a storage context, is a situation in which multiple, under-utilized or badly managed storage media occupy more overall space than can be justified by actual need.  Definition

  • shared storage

    Shared storage is a medium accessible by all of the subscribers in a network, intended for file storage and allowing simultaneous access by multiple subscribers without the need to duplicate files to their computers.  Definition

  • I/O contention (input/output contention)

    I/O contention (input/output contention), occurs when virtual machines compete for I/O resources because there is a limited storage bandwidth.  Definition

  • clustered storage

    Clustered storage is the use of two or more storage servers working together to increase performance, capacity, or reliability. Clustering distributes work loads to each server, manages the transfer of workloads between servers, and provides access t...  Definition

  • interrupt vector

    An interrupt vector is the memory location of an interrupt handler, which prioritizes interrupts and saves them in a queue if more than one interrupt is waiting to be handled.  Definition

  • paging

    Paging is a method of writing data to, and reading it from, secondary storage for use in primary storage, also known as main memory. Paging plays a role in memory management for a computer's OS (operating system).  Definition

  • memory management

    Memory management is the process of controlling and coordinating computer memory, assigning portions called blocks to various running programs to optimize overall system performance.  Definition

  • write back

    Write back is a storage method in which data is written into the cache every time a change occurs, but is written into the corresponding location in main memory only at specified intervals or under certain conditions.  Definition

  • write through

    Write through is a storage method in which data is written into the cache and the corresponding main memory location at the same time. The cached data allows for fast retrieval on demand, while the same data in main memory ensures that nothing will g...  Definition

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