| 摘要 |
PROBLEM TO BE SOLVED: To improve data readout speed from a disk device in a computer system capable of transferring data through a node device 200 between a client 100 and a storage device 300. SOLUTION: A common volume PDc and unique volumes PDa, PDb are defined on a disk device of a storage device 300. Data common to each client are stored in the common volume, and data unique for every client are stored in the unique volume. When each client requests readout of data to virtual volumes VDa, VDb, the storage device reads corresponding data out of the common volume or unique volume. Consequently, even if access concentration from a plurality of clients is occurred, a lowering of readout speed can be suppressed since data are mainly read out of the common volume. COPYRIGHT: (C)2005,JPO&NCIPI
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