Data Backup Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing data backup and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

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  • D

    data restore

    Data restore is the process of copying backup data from secondary storage and restoring it to its original location or a new location.

  • data retention policy

    A data retention policy dictates the types of data to be retained and the duration for which that data must be stored in accordance with operational or regulatory requirements.

  • Datto

    Datto Inc. is a backup, recovery and business continuity vendor with headquarters in Norwalk, Conn.

  • deduplication software

    Dedupe software eliminates unnecessary copies of data by redirecting new iterations of the data back to the original.

  • Dell EMC Avamar

    Dell EMC Avamar is a hardware and software data backup product.

  • differential backup

    A differential backup is a type of backup that copies all the data that has changed since the last full backup.

  • disk backup or disk-based backup

    Disk backup, or disk-based backup, is a data backup and recovery method that backs data up to hard disk storage.

  • DLT (digital linear tape)

    Before the popular Linear Tape-Open Consortium came into existence, Quantum had its proprietary digital linear tape (DLT) format. Learn more about DLT technology here.

  • Druva

    Druva is a cloud data protection and management software company based in Sunnyvale, Calif.

  • E

    Dell EMC NetWorker

    Dell EMC NetWorker is a backup software platform for the enterprise.

  • encryption key management

    Encryption key management is the administration of tasks involved with protecting, storing, backing up and organizing encryption keys.

  • F

    flat backup

    Flat backup uses snapshots to protect data without traditional backup software. Storage snapshots are replicated to another location, where they are a backup to the originals. Flat backup can be cheaper than a traditional backup, but not all storage vendors support the process.

  • G

    ghost imaging

    Ghost imaging, often called cloning, is a software-driven data backup process that copies the contents of a computer hard disk in a single compressed file or set of files, referred to as an image.

  • global deduplication

    Global deduplication is a method of preventing redundant data when backing up data to multiple deduplication devices.

  • H

    hot backup (dynamic backup)

    Hot data backups are the standard for most database backups, as users can stay online while they are performed. But the technology has risks, such as a performance impact.

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