3-2-1 Backup
"3-2-1 Backup" is a commonly promoted technique for preventing permanent data loss.[1][2].
It consists of having three copies of your data, two on-site, each on a separate device (e.g., an identical copy on two different hard drives or one on a hard drive and the other on a backup tape), and one offsite (hence "3-2-1").
Having two on-site copies allows you to quickly access your data even if one is lost or damaged. Having an off-site copy allows you to access your data even if the two on-site copies are both lost or damaged at the same time (e.g., due to theft or fire).
This article "3-2-1 Backup" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:3-2-1 Backup. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.
- ↑ Magnusson, Magnusson (7 September 2018). Implementing a Backup-Scheme with the 3-2-1 Strategy : A Comparison of the Active Solution with a New Implemented 3-2-1 Backup-Scheme (Dissertation). Sweden: Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology. p. 16. Retrieved 6 June 2019. Search this book on
- ↑ Spence, Nikki; Bhardwaj, Niharika; Paul, David P.; Coustasse, Alberto (Summer 2018). "Ransomware in Healthcare Facilities: A Harbinger of the Future?" (PDF). Perspectives in Health Information Management. Retrieved 6 June 2019.
