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This page is a glossary of backup terms that aims to clarify the meaning of such jargon and terminology. Terms and definitions. 3-2-1 Rule (or 3-2-1 Backup Strategy)
In information technology, a backup, or data backup is a copy of computer data taken and stored elsewhere so that it may be used to restore the original after a data loss event. The verb form, referring to the process of doing so, is "back up", whereas the noun and adjective form is "backup". [1]
Backup rotation scheme; Backup site; Glossary of backup terms; Bare-metal restore; Buffalo network-attached storage series; Business continuity and disaster recovery auditing; Business continuity planning
Backup software are computer programs used to perform a backup; they create supplementary exact copies of files, databases or entire computers. These programs may later use the supplementary copies to restore the original contents in the event of data loss ; [ 1 ] hence, they are very useful to users.
It is important to use the terms "differential backup" and "incremental backup" correctly. The two terms are widely used in the industry, and their use is universally standard. [1] A differential backup refers to a backup made to include the differences since the last full backup, while an incremental backup contains only the changes since the ...
Grandfather-father-son backup (GFS) is a common rotation scheme for backup media, [1] in which there are three or more backup cycles, such as daily, weekly and monthly. The daily backups are rotated on a 3-months basis using a FIFO system as above. The weekly backups are similarly rotated on a bi-yearly basis, and the monthly backup on a yearly ...
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The debate hinges on the use of the term continuous: whether only the backup process must be continuously automatically scheduled, which is often sufficient to achieve the benefits cited above, or whether the ability to restore from the backup also must be continuous. The Storage Networking Industry Association (SNIA) uses the "every write ...