Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-02-20
2007-02-20
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S011000, C714S012000
Reexamination Certificate
active
10346411
ABSTRACT:
An apparatus for and method of enhancing throughput within a cluster lock processing system having a relatively large number of commodity cluster instruction processors which are arranged in redundant fashion to improve reliability. Because the commodity processors have virtually no system viability features such as memory protection, failure recovery, etc., the cluster/lock processors assume the responsibility for providing these functions. The low cost of the commodity cluster instruction processors makes the system almost linearly scalable. The cluster/locking, caching, and mass storage accessing functions are fully integrated into a single hardware platform which performs the role of the cluster/lock master. Upon failure of this hardware platform, a second redundant hardware platform converts from slave to master role. The logic for the failure detection and role swapping is placed within software, which can run as an application under a commonly available operating system. During periods between failures, both master and slave, along with their redundant interfaces, are employed to enhance throughput.
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Heideman Michael J.
Konrad Dennis R.
Novak David A.
Beausoliel Robert
Ehne Charles
Johnson Charles A.
Nawrocki, Rooney & Sivertson P.A.
Starr Mark T.
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