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November, 2017, Vol. 16, No. 9

No data left behind: Demand for cold data storage heats up

Data goes into cold storage when it's infrequently or never accessed. Cold storage is for data that is kept for compliance reasons; has possible future value; or because IT is concerned that if the data is deleted, that's when it will be needed. This type of storage generally costs much less than primary and secondary storage and has correspondingly lower performance. Cold data is frequently conflated with cold data storage, but actually can exist on any storage media and systems. Cold data storage, on the other hand, is a system specifically architected for storing cold data. With cold storage, there's considerable variation in everything from the frequency and performance of data access to media longevity and data resilience and durability. Cold data can become warm or hot again if users suddenly need it. This turn of events complicates the use of the system itself and can add unexpected costs. Recently, cold data storage has become a hot topic for several reasons, including the following: Exponential data growth. Analysts ...

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