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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.
The backup data needs to be stored, requiring a backup rotation scheme, [4] which is a system of backing up data to computer media that limits the number of backups of different dates retained separately, by appropriate re-use of the data storage media by overwriting of backups no longer needed. The scheme determines how and when each piece of ...
Traditional backups only restore data from the time the backup was made. True continuous data protection, in contrast to "snapshots", has no backup schedules. [5] When data is written to disk, it is also asynchronously written to a second location, either another computer over the network [6] or an appliance. [7]
Scheduled Backup – data is backed up according to a fixed schedule. Manual Backup – backup of data is triggered by user input. Event-based Backup – backup of data is triggered by some computer events, e.g. database or application stoppage (cold backup).
Bitstream copying (or data backup) is a foundational operation often employed before many other practices, and facilitates establishing the redundancy of multiple storage locations: refreshing is the transportation of unchanging data, frequently between identical or functionally similar storage formats, while migration converts the format or ...
This ensures that the most recent data is available locally in the event of need for recovery, while archived data that is needed much less often is stored in the cloud. [ 1 ] Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to ...