DISK ARRAY DEVICE

PROBLEM TO BE SOLVED: To provide a disk array device capable of using a memory area other than one in which failure has occurred in a failed I/O process controller and minimizing the influence of performance degradation, without taking over all I/O processes to an I/O controller of the other system,...

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Bibliographic Details
Main Authors OKAKI TAKUYA, TANABE MASAYUKI
Format Patent
LanguageEnglish
Published 06.11.2008
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a disk array device capable of using a memory area other than one in which failure has occurred in a failed I/O process controller and minimizing the influence of performance degradation, without taking over all I/O processes to an I/O controller of the other system, when a part of a cache memory is failed. SOLUTION: In this disk array device comprising a dual cache memory, when a part of the cache memory 12 is failed, only a memory area (Area1) where the failure occurs is closed and reallocated to the other memory area (Area2) of the same cache memory 12, and the I/O process is continued. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070109319