Buffer control method for quickly determining whether a required data block is in the buffer
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United States of America Patent
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Jun 13, 1989
Grant Date -
N/A
app pub date -
Jul 24, 1986
filing date -
Jul 29, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an information processing method and system including a secondary storage, a primary storage for storing data blocks of the secondary storage and a directory containing control information for the data blocks stored in the primary storage, the directory is consulted to determine whether a desired data block is in the primary storage, and if it is, the data block is read from the primary storage. The control information of the directory contains pairs of addresses on the primary storage of the data blocks stored in the primary storage and the addresses on the secondary storage.
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