Data Backup – What is it? Backup is the process of creating a copy of the data on your system that you use for recovery in case your original data is lost or corrupted. You can also use backup to recover copies of older files if you have deleted them from your system.

Backup and recovery describes the process of creating and storing copies of data that can be used to protect organizations against data loss. ... Recovery from a backup typically involves restoring the data to the original location, or to an alternate location where it can be used in place of the lost or damaged data.

Backup is crucial for data protection. A regular data backup—preferably daily or weekly—saves your important files from inevitable data loss situations due to common events such as system crash, malware infection, hard drive corruption and failure, etc.

Many people consider the backup rule of three to be best practice despite its roots in photography. The concept reminds businesses how many backup files to keep and where to store them. The backup rule of three dictates that you should; Have at least three copies of your data.