STORAGE SYSTEM AND MIGRATION METHOD OF STORAGE SYSTEM

A first virtual parity group management table that associates first virtual parity group management information with second virtual parity group management information using physical disk management information is created and memorized in a first sharable memory section, a second virtual parity grou...

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Bibliographische Detailangaben
Hauptverfasser:	MIYAZAWA, Akihito, KANNO, Shinichiro, NAKAYAMA, Shunsuke
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
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Beschreibung
Zusammenfassung:	A first virtual parity group management table that associates first virtual parity group management information with second virtual parity group management information using physical disk management information is created and memorized in a first sharable memory section, a second virtual parity group management table that associates logical device information, third virtual parity group management information that sets the second virtual parity group management information to virtual parity group management information regarding its own storage system, and fourth virtual parity group management information that sets the first virtual parity group management information to virtual parity group management information regarding the non-own storage system with one another is created and memorized in a second sharable memory section, and migration of a physical disk is accepted on the condition that these tables are memorized.