Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1999-12-09
2000-08-08
Yoo, Do Hyun
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711162, G06F 1216
Patent
active
061015741
ABSTRACT:
A disk control unit for writing and reading data to/from at least one disk device on the basis of an input/output request of an upper apparatus includes a volatile cache memory for holding data of the disk device, a non-volatile cache memory and a recording format information table stored in the non-volatile cache memory for holding recording format information of the tracks of the disk device. A write cache control unit refers to the recording format information table so as to enable the upper apparatus to perform a writing process on the volatile cache memory even when corresponding data of the disk device do not exist on the volatile cache memory.
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Kumasawa Tadashi
Takahashi Hidehisa
Fujitsu Limited
Tran Denise
Yoo Do Hyun
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