Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Patent
1996-12-03
2000-02-29
Peikari, B. James
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
711167, 710 58, 710 60, 710 16, 710 15, G06F 1208
Patent
active
060322241
ABSTRACT:
A computer having capabilities for hierarchical storage of data, said computer including an interpreter that maps logical user read and write requests to physical block level read and write requests, and a hierarchical performance driver having a disk driver interface for receiving the block level read and write requests from the interpreter, the hierarchical performance driver issuing instructions to read and write data from plural data storage devices in response to block level read and write requests, plural data storage devices having different data access speeds, the hierarchical performance driver monitoring the rates of access of blocks of data stored on the data storage devices and transferring blocks of data accessed infrequently from a faster data storage device to a slower data storage device.
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EMC Corporation
Peikari B. James
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