“Backups have two distinct purposes. The primary purpose is to recover data after its loss, be it by data deletion or corruption. Data loss can be a common experience of computer users; a 2008 survey found that 66% of respondents had lost files on their home PC.[2] The secondary purpose of backups is to recover data from an earlier time, according to a user-defined data retention policy, typically configured within a backup application for how long copies of data are required. Though backups represent a simple form of disaster recovery, and should be part of any disaster recovery plan, backups by themselves should not be considered a complete disaster recovery plan.”
Backup. (2017, February 8). In Wikipedia, The Free Encyclopedia. Retrieved 21:01, February 8, 2017, from https://en.wikipedia.org/w/index.php?title=Backup&oldid=764269797