Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Patent
1997-06-26
1999-09-21
Lee, Thomas C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
710 6, 710 52, 711129, G06F 1314, G06F 1312
Patent
active
059548010
ABSTRACT:
A method provides for managing commands received by a disk drive via an intelligent interface from a host. The drive has a magnetic disk, and a cache with the cache being divisible into a number of segments. The cache employs a cache control structure including a cache environment variable. The drive receives a first command that requests data and a second command. The method comprises the steps of: processing the first command and caching only the requested data from the disk drive; and processing the second command and caching prefetched data for the second command if the second command is determined to be sequential with the first command.
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Lee Thomas C.
Park Ilwoo
Shara Milad G.
Western Digital Corporation
Young Leo J.
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