Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2004-09-30
2008-03-11
Bonzo, Bryce P (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S011000, C714S041000
Reexamination Certificate
active
07343515
ABSTRACT:
A system and method is disclosed for performing error recovery in a data processing system that supports multiple processing partitions. One or more processors and I/O modules, as well as a portion of the address space of a main memory, is allocated to each partition. In this type of configuration, requests generated by units of multiple partitions are processed by the same queue and state logic of the main memory. When a failure occurs within one processing partition, one or more units are identified as being directly affected by the fault. All requests and responses from, and to, the affected units, as well as any logical residue of these requests and responses are removed from the shared memory queue and state logic in a manner that allows the other partition to continue issuing requests and responses to the memory in a normal manner that does not involve recovery operations.
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patent: 6594785 (2003-07-01), Gilbertson et al.
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Bauman Mitchell A.
Gilbertson R. Lee
Svenkeson Penny L.
Bonzo Bryce P
Gregson Richard J.
Johnson Charles A.
Marley Robert
Unisys Corporation
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