Storage system

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United States of America Patent

PATENT NO 12045133
APP PUB NO 20230236932A1
SERIAL NO

17940312

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In each node constituting a storage system, there is at least one of a storage area (user area) in which a user data set is stored and a storage area (parity area). For the node having the user area, there is user part difference information including information indicating whether or not to be in presence of difference for each user area of the node. For the node having the parity area, there is parity part difference information including the information indicating whether or not to be in the presence of difference for each parity area of the node. Out of the parity part difference information, the information corresponding to the parity area is the information indicating the presence of difference when there is the information indicating the presence of difference in the storage area of any of the data sets used for generating the parity stored in the parity area.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTDTOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebara, Hiroto Tokyo, JP 33 37
Ito, Shintaro Tokyo, JP 69 337
Ono, Taisuke Tokyo, JP 14 51
Saito, Hideo Tokyo, JP 174 2416
Tajima, Sachie Tokyo, JP 26 135
Yamamoto, Takahiro Tokyo, JP 297 1896

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