Electrical computers and digital processing systems: multicomput – Miscellaneous
Reexamination Certificate
2011-08-02
2011-08-02
Chankong, Dohm (Department: 2452)
Electrical computers and digital processing systems: multicomput
Miscellaneous
C709S223000, C709S224000, C709S225000, C709S226000, C707S704000, C707S687000, C714S013000
Reexamination Certificate
active
07991822
ABSTRACT:
Local versions of attributes of a storage object are maintained at a plurality of nodes, wherein a first attribute designates a first node of the plurality of nodes as an owner node for the storage object, and wherein a second attribute includes information to resolve validity of ownership of the storage object among the plurality of nodes. The owner node communicates changes to be made to the local versions of the attributes at other nodes of the plurality of nodes. A second node of the plurality of nodes requests ownership of the storage object. The first attribute is updated to designate the second node of the plurality of nodes as the owner node, in response to determining from the second attribute that the validity of ownership of the storage object allows the second node to inherit ownership of the storage object once the first node surrenders ownership of the storage object.
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U.S. Patent Application entitled “Securing Transfer of Ownership of a Storage Object from an Unavailable Owner Node to Another Node”, Serial No. unknown, filed Aug. 31, 2007, by inventors T.W. Bish, T. Niranjan, M.A. Reid, J.M. Swingler, and M.W. Young.
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Bish Thomas William
Reid Mark Albert
Swingler Joseph M.
Young Michael Wayne
Chankong Dohm
Dutta Rabindranath
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Utreja Neeraj
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