Storage system

The invention relates to a storage system, a storage system management method and a computer system. The invention provides a technology capable of easily changing processors taking charge of a logical storage device. A host I/F unit has a management table for managing an MPPK which is in-charge of...

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Bibliographic Details
Main Authors SERIZAWA HAJIME, SATO TAKAO, SHIMOZONO NORIO, YAMAMOTO YASUTOMO, HONMA HISAO, DEGUCHI AKIRA, TAKEUCHI HISAHARU
Format Patent
LanguageChinese
English
Published 20.07.2011
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention relates to a storage system, a storage system management method and a computer system. The invention provides a technology capable of easily changing processors taking charge of a logical storage device. A host I/F unit has a management table for managing an MPPK which is in-charge of the control of input/output processing for a storage area of an LDEV, and if a host computer transmits an input/output request for the LDEV, the host I/F unit transfers the input/output request to the MPPK which is in-charge of the input/output processing for the LDEV based on the management table, an MP of the MPPK performs the input/output processing based on the input/output request, and the MP of the MPPK also judges whether the MPPK that is in-charge of the input/output processing for the LDEV is to be changed, and sets the management table so that an MPPK which is different from the MPPK that is in-charge is to be in-charge of the input/output processing for the LDEV.
Bibliography:Application Number: CN201110109199