Disclosed is a method and apparatus for data classification of a storage server for a service having a high human relationship and a high temporal property. According to an embodiment of the present invention, there is provided a method of classifying data in a storage server, the method comprising: storing a new file in a storage server as a three-dimensional data structure considering a human relationship and popularity corresponding to the new file; Setting a priority of the new file based on the popularity of the new file; And dividing each of the files into hot data and cold data based on a priority of each of the files stored in the storage server.
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