Incomputer 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]
To 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]
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