Synonyms
CDP; Continuous backup
Definition
CDP is a data protection service capturing data changes to storage, often providing the capability of restoring any point in time copies.
Key Points
CDP differs from usual backups in that users do not need to specify the point in time until they recover data from backups. From an application point of view, every time when it updates data in an original volume, CDP keeps updates. In case of recovery, when users specify the point in time, CDP creates the point in time copy from an original volume and updates.
In several CDP implementations, users can specify the granularities of restorable objects which help them to specify the point in time easily. For example, restorable objects range from crash-consistent images to logical objects such as files, mail boxes, messages, database files, or logs.
Cross-References
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Laden G, et al. Architectures for controller based CDP. In: Proceedings of the 5th USENIX Conference on File and Storage Technologies; 2007. p. 107–21.
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© 2018 Springer Science+Business Media, LLC, part of Springer Nature
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Fujimoto, K. (2018). Continuous Data Protection. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_1465
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DOI: https://doi.org/10.1007/978-1-4614-8265-9_1465
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