In information technology, a backup, or data backup, or the process of backing up, refers to the copying into an archive file of computer data that is already in secondary storage—so that it may be used to restore the original after a data loss event. The verb form is "back up" (a phrasal verb), whereas the noun and adjective form is "backup".
Backups are primarily to recover data after its loss from data deletion or corruption, and secondarily to recover data from an earlier time, based on a user-defined data retention policy. 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 (DRP). One reason for this is that not all backup systems are able to reconstitute a computer system or other complex configuration such as a computer cluster, active directory server, or database server by simply restoring data from a backup.
Commercial Backup products
- Read about wikipedia:NDMP
- Learn about RPO and RTO
mysqldumpto backup your MySQL or MariadDB Databases
- KVM: Create Live backups
- CKA v1.18: Implement backup and restore methodologies
- Database Fundamentals/Backup and Restore
- Oracle Database Administration/Backup and Recovery
- Linux server administration/Backup and Restore
- Disk Arrays
- Backups: Data corruption, Business continuity planning, Bacula, Commvault, NetBackup, Veeam, Storage Lifecycle Policy (SLP), TeamCity backup, Backup docker containers, HP Data Protector, Unitrends, Acronis, Veeam Backup & Replication, Disaster Recovery (DR), Point-in-time recovery, RTO, RPO, PITR