Method for lock management, page coherency, and asynchronous writing of changed pages to shared external store in a distributed computing system
February 16, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and means for path independent device reservation and reconnection in a multi-CPU and shared device access system Method and means for the sharing of data resources in a multiprocessing, multiprogramming environment Multiprocessor intercommunication system and method Method and means for the retention of locks across system, subsystem, and communication failures in a multiprocessing, multiprogramming, shared data environment Distributed data processing in ring-structured networks architected for full duplex peer-to-peer operation of processing stations and uninterruptible transfer of long data records between stations Centralized synchronization of clocks Shared resource locking apparatus Decentralized synchronization of clocks Lockout operation among asynchronous accessers of a shared computer system resource Shared and exclusive access control InventorsApplicationNo. 155674 filed on 02/16/1988US Classes:711/100STORAGE ACCESSING AND CONTROLExaminersPrimary: Fleming, Michael R.Assistant: Ray, Gopal C. Attorney, Agent or FirmInternational ClassesG06F 015/16G06F 013/00 G06F 013/14 AbstractA method for increasing throughput of N-way central electronic complexes concurrently executing processes to selectively lockable data resources while maintaining coherency among replicates of the information state of any accessed resource. Throughput is increased by overlapping a resource lock request with the processing incidental to accessing the resource. Processes are granted locks to portions of the resource based on the interest state held by the central electronic complex in the resource. Messages are attached to locked resources and are distributed to the appropriate complexes by virtue of a list maintained by the central electronic complex holding sole interest in the resource. The central electronic complex distributing the messages must receive acknowledgement of the message reception before releasing the resource.Other References
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