A method for online hierarchical storage of data in a cluster storage system
A hierarchical storage and cluster storage technology, applied in the transmission system, electrical components, etc., can solve the problems of data value reduction and access frequency reduction, and achieve the effect of improving overall performance and saving storage costs
Active Publication Date: 2011-12-21
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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The invention provides a data online hierarchical storage method in a cluster storage system. Data has a life cycle, and particularly has different meanings in different periods; a cluster storage system stores mass data; however, only 20% of the mass data is key data at high access frequency, and 80% of the mass data is non-key data at low access frequency that the non-key data is generally not accessed in one month or even one year; and the mass data stored in the cluster storage system is classified for storage according to the data access frequency and the characteristic that data has a life cycle so as to save the storage cost. According to the invention, different storage pools are established in the cluster storage system based on the life cycle of data, online hierarchical storage in the cluster storage system is realized by use of scanning software and migration software, thereby saving the storage cost and improving the overall performance of the system.
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