Expander to control multipaths in a storage network

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United States of America Patent

PATENT NO 8694708
SERIAL NO

13592529

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Abstract

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A SAS expander forms a first path coupling the SAS initiator and a first port of a SAS target together. The first SAS expander notifies the SAS initiator of a virtual expander address instead of a SAS address of the first SAS expander. The first SAS expander notifies the SAS initiator of a virtual target port address, at least instead of a SAS address of the first port of the SAS target. A second SAS expander forms a second path coupling the SAS initiator and a second port of the SAS target together. The second SAS expander notifies the SAS initiator of the virtual expander address instead of a SAS address of the second SAS expander. The second SAS expander notifies the SAS initiator of the virtual target port address, at least instead of a SAS address of the second port of the SAS target.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jinno, Mitsutoshi Yamato, JP 8 33
Miyoshi, Hiroyuki Kawasaki, JP 104 837
Terashita, Yoshihiko Yamato, JP 29 381

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