DISTRIBUTED STORAGE SYSTEM AND DISTRIBUTED STORAGE METHOD
First Claim
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1. A distributed storage system, comprising:
- a plurality of data nodes coupled via a network, the data nodes including data storage units, respectively, whereinthe data nodes of replication destination of data, include at least two data nodes that hold, in the respective data storage units thereof, data structures logically identical but physically different between the at least two data nodes.
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Abstract
A distributed storage system of the present invention includes a plurality of data nodes coupled via a network and respectively including data storage units. At least two of the data nodes hold in the respective data storage units thereof replicas of a plurality of types of data structures that are logically identical but are physically different between the data nodes.
130 Citations
30 Claims
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1. A distributed storage system, comprising:
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a plurality of data nodes coupled via a network, the data nodes including data storage units, respectively, wherein the data nodes of replication destination of data, include at least two data nodes that hold, in the respective data storage units thereof, data structures logically identical but physically different between the at least two data nodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A distributed storage method in a system comprising a plurality of data nodes coupled via a network, the plurality of data nodes respectively including data storage units, the method comprising:
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at least two of the data nodes of data replication destinations, receiving replication data; and storing the data in respective data storage units thereof, in data structures that are logically identical but are physically different between the at least two of the data nodes. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A data node apparatus comprising
a data storage unit, the data node apparatus coupled to other data nodes via a network, a plurality of data nodes forming a distributed storage system, the data node apparatus comprising a unit that, in of replication of data to be updated to a plurality of the data nodes, receives replication data and stores the data in the data storage unit thereof in a data structure that is logically identical to but is physically different from at least one of other data nodes.
Specification