Backing up or running a backup, is the result of the copying and archiving data so it may be used later to restore the original after a data loss event for example.
Backups are useful in 2 situations:
- Recover data after its loss, deletion or even corruption.
- Recover data from the past (depending on the data retention policy).
Backups, alone, aren’t a complete disaster recovery plan. Because not all backup systems are able to restore the data.