Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-09-30
2010-06-01
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S021000, C714S026000, C714S033000, C714S037000
Reexamination Certificate
active
07730363
ABSTRACT:
A system includes an input unit (2) to which failure information corresponding to failure modes of constituents indicating software and hardware, a system configuration information and a standard value of system availability are inputted, a producing unit (32) producing a fault tree based on the system configuration information, a calculating unit (34) calculating unavailability corresponding to the failure modes based on a result of analyzing the failure information, and calculating system availability based on the calculated unavailability and the fault tree, a determining unit (35) determining whether the system availability meets the standard value, an extracting unit (36) extracting a basic event related to an increase in the system availability when the system availability is determined to be below the standard value, and resetting units (38, 39) resetting new unavailability and the like based on whether it is possible to reduce the unavailability of the extracted basic event.
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Nakahara Katsuhiko
Okuda Hiroaki
Takayama Masayuki
Takezawa Nobuhisa
Uenohara Yuuji
Beausoliel Robert
Manoskey Joseph D
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toshiba Solutions Corporation
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