Storage tiering Definitions

  • A

    automated data tiering

    Automated data tiering is a type of software program that moves data files, volumes or blocks between tiered storage according to company-defined policy.

  • automated storage tiering (AST)

    Automated storage tiering (AST) is a storage software management feature that dynamically moves information between different disk types and RAID levels to meet space, performance and cost requirements.

  • auxiliary storage

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

  • C

    capacity optimization (CO)

    Capacity optimization (CO) is a technique for getting more data on a storage medium by analyzing the data for unique repetitive patterns that can be stored as and reassembled from shorter symbols.

  • cloud computing maturity model (CCMM)

    A Cloud Computing Maturity Model (CCMM) is a model that defines and analyzes the progress of an organization’s ability to deliver cloud services in key areas such as capabilities, domains, maturity and adoption.

  • cloud storage provider

    A cloud storage provider is a third-party company that offers organizations and end users the ability to save data to an off-site storage system.

  • cloud washing

    Cloud washing is the purposeful and sometimes deceptive attempt by a vendor to rebrand an old service by associating the word "cloud" with it.  

  • clustered file system (CFS)

    Clustered file systems are file systems that run on multiple storage servers and can be accessed and managed as a single system.

  • column address strobe

    In computer memory technology, CAS (column address strobe) is a signal sent to a dynamic random access memory (DRAM) that tells it that an associated address is a column address. A data bit in DRAM is stored in a cell located by the intersection of a column address and a row address. A RAS (row address strobe) signal is used to validate the row address.

  • Common Assurance Maturity Model (CAMM)

    The Common Assurance Maturity Model (CAMM) is a global project to list the information assurance maturity of suppliers offering provisioning services (for example, cloud providers).

  • D

    data at rest

    Data at rest is a term that is sometimes used to refer to all data in computer storage while excluding data that is traversing a network or temporarily residing in computer memory to be read or updated.

  • data migration

    Data migration is the process of transferring data between data storage systems, data formats or computer systems.

  • F

    FLAPE

    FLAPE (flash plus tape) is an approach to tiered storage that allows administrators to archive data as soon as it is written.

  • H

    HSM (Hierarchical Storage Management)

    HSM (Hierarchical Storage Management) is policy-based management of file backup and archiving in a way that uses storage devices economically and without the user needing to be aware of when files are being retrieved from backup storage media.

  • I

    information life cycle management (ILM)

    Information life cycle management (ILM) is a comprehensive approach to managing the flow of an information system's data and associated metadata from creation and initial storage to the time when it becomes obsolete and is deleted.

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