Hitachi Vantara Corporation

Fabrice Claude Oliver Helliker

Simon James Chappell

Paul Clive Caswell

User access to a data storage system including one or more nodes providing a plurality of data storage resources is controlled, the plurality of data storage resources storing one or more user-accessible primary data structures and one or more user-accessible secondary data structures, each secondary data structures being stored on the basis of a respective associated primary data structure, wherein the data storage system stores, for each secondary data structure, data structure metadata which is indicative of a parent data storage resource and an owner data storage resource of the respective secondary data structure. Upon receiving a user request to access a certain secondary data structure of the one or more secondary data structures stored on a respective parent data storage resource, based on data structure metadata stored for the certain secondary data structure, the respective owner data storage resource of the certain secondary data structure is determined.

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Bracknell, United Kingdom

Fabrice Claude Oliver Helliker