COMPUTER SYSTEM, DATA MANAGEMENT METHOD, AND RECORDING MEDIUM FOR STORING PROGRAM

摘要

A search server for which data stored in a hierarchical control server utilizing a plurality of storage devices is the object of a search, wherein the search server is designed to update a search index to data while the data exists in an upper-hierarchy storage of the hierarchical control server. Included in a computer system are: a storage unit for storing the usage status of an upper-hierarchy storage area of a hierarchical storage having the upper-hierarchy storage area and a lower-hierarchy storage area; and a determination unit for determining, according to the stored usage status, which process should be given priority between an indexing process for data that is an index-updating candidate among data stored in the hierarchical storage, or a migration process for moving the data to the lower-hierarchy storage area.

主权项

1. A computer system comprising:
a storage unit for storing a utilization situation of an upper-hierarchy storage area in a hierarchical storage including the upper-hierarchy storage area and a lower-hierarchy storage area; a decision unit for determining which of index processing of data that is included in data stored in the hierarchical storage and that becomes an index update candidate and migration processing of moving the data to the lower-hierarchy storage area is to be conducted preferentially, depending upon the utilization situation; and a control unit for moving the data that becomes the index update candidate to the lower-hierarchy storage area on the basis of a result of the determination.