Online volume migration using multi-path input / output masquerading

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United States of America Patent

PATENT NO 8806157
APP PUB NO 20120278572A1
SERIAL NO

13532984

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Abstract

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A method, including configuring data migration from a first volume to a second volume, which are coupled via a storage area network (SAN) to a host computer, with the first volume mapped to the host computer. A volume identifier associated with the first volume is copied to a memory coupled to the second volume, and the copied volume identifier is retrieved from the memory by the host computer. A state of the second volume is set to inactive, and the inactive second volume is mapped to the host computer. A state of the first volume is set to inactive, and the status is data from the inactive first volume to the inactive second volume. After the copying, data migration is started from the inactive first volume to the inactive second volume, and after the starting, the state of the second volume is set to active.

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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
Broido, Yakov Hod Hasharon, IL 4 67
Goodman, Daniel I Beit Shemesh, IL 23 254
Helman, Haim Saratoga, US 95 1396
Kull, Leonid Yehud, IL 4 67
Nissan-Messing, Orit Hod HaSharon, IL 56 359
Rozendorn, Guy Ramat Gan, IL 8 72

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