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Database Backup and Recovery from Catastrophic Failures

Database Backup and Recovery are essential practices in managing a database system to ensure data durability, availability, and integrity.

A Database Backup is a process of creating a copy of the database and its associated data, which can be used to restore the database in case of failure.

  • Regular backups are critical to ensure that data can be recovered to a point before the failure occurred.

Database Recovery refers to the process of restoring the database from a backup or other data protection mechanisms after a failure occurs.

  • Recovery ensures that the database returns to a consistent state without data loss.

In the event of a catastrophic failure—such as hardware malfunctions, disk crashes, power outages, data corruption, or natural disasters—having a robust backup and recovery system is critical for restoring the database to a consistent and operational state.

  • In the case of catastrophic system failure, the latest backup copy can be reloaded from the tape to the disk, and the system can be restarted.

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