- Source: Backup software
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; hence, they are very useful to users.
Key features
There are several features of backup software that make it more effective in backing up data.
= Volumes
=Voluming allows the ability to compress and split backup data into separate parts for storage on smaller, removable media such as CDs. It was often used because CDs were easy to transport off-site and inexpensive compared to hard drives or servers.
However, the recent increase in hard drive capacity and decrease in drive cost has made voluming a far less popular solution. The introduction of small, portable, durable USB drives, and the increase in broadbhttps://play.google.com/store/apps/dev?id=5831113001306206967https://blog.youtube/news-and-events/podcast-destination-on-youtube-music/at and capacity has provided easier and more secure methods of transporting backup data off-site.
= Data compression
=Since hard drive space has cost, compressing the data will reduce the size allowing for less drive space to be used to save money.
= Access to open files
=Many backup solutions offer a plug-in for access to exclusive, in use, and locked files.
= Differential and incremental backups
=Backup solutions generally support differential backups and incremental backups in addition to full backups, so only material that is newer or changed compared to the backed up data is actually backed up. The effect of these is to increase significantly the speed of the backup process over slow networks while decreasing space requirements.
= Schedules
=Backup schedules are usually supported to reduce maintenance of the backup tool and increase the reliability of the backups.
= Encryption
=To prevent data theft, some backup software offers cryptography features to protect the backup.
= Transaction mechanism
=To prevent loss of previously backed up data during a backup, some backup software (e.g., Areca Backup, Argentum Backup) offer
Transaction mechanism (with commit/rollback management) for all critical processes (such as backups or merges) to guarantee the backups' integrity.
See also
Backup
Cloud storage
List of backup software
Comparison of backup software
References
Learning materials related to Backup software at Wikiversity
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