Effective strategies for data backup

The 3-2-1 Data Protection Rule, formulated by photographer Peter Kroog in 2009, is considered one of the most important backup methods. It ensures the maintenance of three copies of data: two on different media and one stored in a remote location. The rule was later developed into models that include maintaining a secure, continuous, error-free (zero-error) copy to guarantee full and safe data recovery. Companies and individuals are advised to use a variety of solutions, including commercial or private cloud storage, with the importance of keeping an external physical copy to avoid complete reliance on the service provider.

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