Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Geoffrey Wehrman0
Dean Roehrich0
Date of Patent
August 30, 2011
0Patent Application Number
106203870
Date Filed
July 17, 2003
0Patent Primary Examiner
Patent abstract
A cluster of computer system nodes share direct read/write access to storage devices via a storage area network using a cluster filesystem and operating system implementing DMAPI. Threads executing on a metadata client know when a DMAPI event is required, and generate the DMAPI event on their own initiative when necessary. A metadata server maintains DMAPI queues. If the metadata server relocates to another host, the DMAPI events in the DMAPI queues are moved transparently to users.
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