| 摘要 |
A control technique for resident information or release of resident information in a cache memory is provided, by which residence is set into a cache memory without regard of a logical volume where a dataset is present, and an unused resident area in the cache memory is automatically deleted. In an information processing system, a host system has a resident management program for automatically acquiring a logical volume name from a dataset name specified by the user with reference to catalog information for managing dataset stored in the logical volume and instructing the dataset on the logical volume having the corresponding logical volume name to be resident. Further, a disk array system has microprogram for making the dataset on the logical volume having the corresponding logical volume name resident in the cache memory in response to the instruction to set residence from the resident management program.
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