Definition

hot data

Hot data is data that needs to be accessed frequently. It is typically business-critical information that needs to be accessed quickly and is often used by a company for quick decision making.

Hot data usually resides on the fastest storage -- typically flash in hybrid or tiered storage environments. Conversely, cool data is data that is accessed less frequently by an organization. Cool data is usually stored on lower performing and less expensive storage environments in-house or in the cloud.

Contributor(s): Sarah Wilson
This was last updated in January 2014
Posted by: Margaret Rouse

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