PROPAGATION OF UPDATES FOR ATTRIBUTES OF A STORAGE OBJECT FROM AN OWNER NODE OF THE STORAGE OBJECT TO OTHER NODES,申请号US20070847214-传众专利搜索

PROPAGATION OF UPDATES FOR ATTRIBUTES OF A STORAGE OBJECT FROM AN OWNER NODE OF THE STORAGE OBJECT TO OTHER NODES

申请公布号：US2009063411(A1)

申请号：US20070847214

申请日期：2007.08.29

申请公布日期：2009.03.05

申请人：

INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人：BISH THOMAS WILLIAM;REID MARK ALBERT;SWINGLER JOSEPH M.;YOUNG MICHAEL WAYNE

分类号：G06F17/30;G06F7/10

主分类号：G06F17/30

摘要：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.