Distributed storage system
AssigneeHitachi, Ltd.
InventorsAbhishek JOHRI, Mitsuo HAYASAKA, Hieuhanh LE
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Abstract
A distributed storage system includes a first node group consisting of a plurality of nodes and a second node group consisting of a plurality of nodes. Each of the first node group and the second node group distributes and stores data of an assigned object to a plurality of constituent nodes. The first node group includes at least one first node shared with the second node group and at least one second node not shared with the second node group. The second node group includes the at least one first node and at least one third node not shared with the first node group.
Claims15
A distributed storage system comprising:
- a first node group consisting of a plurality of nodes;
- and
- a second node group consisting of a plurality of nodes;
- wherein each of the first node group and the second node group distributes and stores data of an assigned object to a plurality of constituent nodes,
- wherein the first node group includes at least one first node shared with the second node group and at least one second node not shared with the second node group, and
- wherein the second node group includes the at least one first node and at least one third node not shared with the first node group.
A method of controlling a distributed storage system comprising:
- distributing and storing data of an object assigned to a first node group to a plurality of constituent nodes of the first node group, the first node group consisting of at least one first node shared with a second node group and at least one second node not shared with the second node group;
- and
- distributing and storing data of an object assigned to the second node group in a plurality of constituent nodes of the second node group, the second node group consisting of the at least one first node and at least one third node not shared with the second node group.
Dependencies are inferred from the claim text.