STORAGE CONTROL APPARATUS

PROBLEM TO BE SOLVED: To secure reliability when controlling data input/output by achieving block data protection (LA/LRC(Longitudinal Redundancy Check)) and Cache dual write of (user data, control data), in a storage control apparatus having a battery backup memory being an integration of CS/DS (Co...

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Bibliographische Detailangaben
Hauptverfasser:	MANNEN AKIHIRO, SHIMADA KENTARO
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To secure reliability when controlling data input/output by achieving block data protection (LA/LRC(Longitudinal Redundancy Check)) and Cache dual write of (user data, control data), in a storage control apparatus having a battery backup memory being an integration of CS/DS (Code Storage/Data Storage) and a cache. SOLUTION: In the storage control apparatus having a battery-backed-up storage device wherein a cache memory of a storage device is integrated with a CPU side system memory, an ASIC having a virtual window function is added to a system, and I/O from a front end or a back end is performed via a virtual window to add a data guarantee code (LA/LRC) and to implement automatic duplication of data. COPYRIGHT: (C)2010,JPO&INPIT