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Backup is defined as additional resources or duplicate copies of data on different storage media to be used (after retrieval) for emergency purposes in cases where the original source is not available for whatever reason. Backups are taken as a part of a disaster recovery plan by organizations. Backup is required as a security measure in case any disaster occurs. Backups are taken on several media like streamer tape, disk, tapes, Compact discs etc. There are backup specilaists companies like Veritas that provide you with all kinds of tools and processes to help you keep your data safe.
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