Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2008-03-31
2011-12-27
Schell, Joseph (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S003000, C714S023000, C714S055000, C714S024000, C370S216000
Reexamination Certificate
active
08086903
ABSTRACT:
A method, apparatus, and computer program product are disclosed in a shared processor data processing system for coordinating error reporting for and resetting of a physical I/O adapter that supports virtualization. The physical I/O adapter is virtualized by generating virtual I/O adapters that each represent a portion of the physical I/O adapter. Each one of the virtual I/O adapters is assigned to a different one of client logical partitions. A determination is made regarding whether the physical I/O adapter may have experienced an error. If the physical I/O adapter has experienced an error, all of the client logical partitions are notified about the error and a recovery of the physical I/O adapter is coordinated among all of the client logical partitions by waiting for each client logical partition to acknowledge the error notification before the physical I/O adapter is reset.
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Arndt Richard Louis
Buckland Patrick Allen
Kiel Harvey Gene
Recio Renato John
Srikrishnan Jaya
Baca Matthew W.
International Business Machines - Corporation
Schell Joseph
Yee & Associates P.C.
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