In computer storage, cold data refers to data that is rarely accessed, therefore considered "cold".
Cold data is the opposite of hot data, which is data that is frequently accessed.[1]
Uses
editTo optimize storage costs, cold data can be stored on lower performing and less expensive storage media.[2] For example, solid state disks may be used for storing hot data, while cold data can be moved to hard drives, optical discs, tapes, or migrated to cloud storage.[3][4]
See also
edit- Cache (computing) – Additional storage that enables faster access to main storage
- Hierarchical storage management – Data storage technique
- Sneakernet – Informal term for the transfer of electronic information by physically moving media
References
edit- ^ Cai, Zhipeng; Wang, Chaokun; Cheng, Siyao; Wang, Hongzhi; Gao, Hong (18 June 2014). Wireless Algorithms, Systems, and Applications: 9th International Conference, WASA 2014, Harbin, China, June 23-25, 2014, Proceedings. Springer. ISBN 978-3-319-07782-6.
- ^ Abbasi, Asif (20 November 2020). AWS Certified Data Analytics Study Guide: Specialty (DAS-C01) Exam. John Wiley & Sons. ISBN 978-1-119-64944-1.
- ^ Cold Data, Techopedia
- ^ Cold Cloud Data Storage, Enterprise Storage Forum
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