STORAGE SYSTEM, STORAGE APPARATUS, CONTROL METHOD OF STORAGE SYSTEM, AND COMPUTER PRODUCT

摘要

A storage system includes a first storage apparatus that stores a first data group selected, based on an access time of each data among plural data; a second storage apparatus that stores a second data group; and a control apparatus that includes a memory unit that stores a Bloom filter in which a property value is registered, and obtained by extracting a property in identification information of each data among the first data group; a processor that is configured to judge whether the property value obtained by extracting the property in the identification information of given data that is to be accessed among the plural data is registered in the Bloom filter; and transmit an access request for the given data to any one among the first storage apparatus and the second storage apparatus, based on results of judgment of whether the property value is registered.

主权项

1. A storage system comprising:
a first storage apparatus that stores a first data group selected from a plurality of data, based on an access time of each data among the plurality of data; a second storage apparatus that stores a second data group different from the first data group among the plurality of data; and a control apparatus that includes:
a memory unit that stores a Bloom filter in which a property value is registered, the property value being obtained by extracting a property in identification information of each data among the first data group;a processor that is configured to:
judge whether the property value obtained by extracting the property in the identification information of given data that is to be accessed among the plurality of data is registered in the Bloom filter; andtransmit an access request for the given data to any one among the first storage apparatus and the second storage apparatus, based on results of judgment of whether the property value is registered.