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The Grandfather-Father-Son tape rotation method is primarily utilized for managing backup tapes in a way that ensures data is available for recovery over different time periods. This backup strategy involves three generations of tapes:

- The "Son" tapes are the most recent backups and are typically rotated more frequently, often daily.

- The "Father" tapes represent backups from a broader timeframe, such as weekly, allowing for recovery points that are slightly older but still relevant.

- The "Grandfather" tapes are the oldest backups and are kept for long-term retention, usually for months or even years.

By employing this method, organizations can maintain a comprehensive backup strategy that allows them to restore data to various points in time, catering to different recovery needs such as recent data loss or historical data retrieval. This approach helps in balancing the need for quick-access backups with longer-term archival requirements, ensuring data is safeguarded efficiently over time.