differential backup


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differential backup

[‚dif·ə‚ren·chəl ′bak‚əp]
(computer science)
Backup of only files that have been changed or added since the last backup.

differential backup

(operating system)
A kind of backup that copies all files that have changed since the last full backup. Each differential backup will include all files in previous differential backups since the full backup so to restore a version of a file, you only need to search the full backup and the relevant differential backup.

Some systems support differential backup by associating an "Archive" flag with each file and setting this flag whenever the file is modified to indicate that it should be included in the next backup. A differential backup does not change this flag, whereas an incremental backup resets it.
References in periodicals archive ?
8226; Complete, Incremental, and Differential Backup
Microsoft SQL Server VSS plugin : Performs differential backup and allows restore at the database level
According to the company, the software can help users to comprehensively backup network data, including schedule backup, full backup, incremental backup, differential backup into local hard drives, external hard drives, CD/DVD, tape device and other storage devices.
Under the simple recovery model database can be recovered only to a point when last full or differential backup was taken.
A full backup now takes a day less and a differential backup is speeded up each day by a few hours.
Differential Backup Method: A differential backup copies all those files that have been modified or changed since the last full backup.
Organizing and managing weekly and differential backup tapes is time-consuming.
It can schedule automatic backup & take incremental or differential backup regularly.
The speed is provided by a unique differential backup scheme: only the changes in files are sent to the store, not all files.
With a more user-friendly interface and many new advanced functions like SQL and Exchange backup, and differential backup, EaseUS Todo Backup 3.
This minimizes the amount of data backed up each time and therefore reduces the amount of time needed for the "backup window" making it different from differential backup.
Schedule backup, incremental backup, differential backup.

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