Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-03-01
2011-03-01
Le, Dieu-Minh (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S733000
Reexamination Certificate
active
07900090
ABSTRACT:
Systems and methods (“utility”) for providing a computer system with a mechanism to record live data on a continuous basis which may be analyzed subsequent to a fault condition is provided. The utility uses the existing DRAM memory of a computer system as a retentive DRAM (RDRAM) device that may be used to store the data. To accomplish this, software and firmware is provided for continuously refreshing the DRAM memory across resets that are due to fault conditions. Further, non-maskable interrupts (NMI) are used to flag a variety of fault conditions to the computer system. To make the utility platform independent, a standardized power and configuration interface is used to implement a computer system reset that preserves the contents of the RDRAM.
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Agrawal Sanjay
Delfatti, Jr. Daniel J.
Heffernan Peter
Simons Thomas W.
Le Dieu-Minh
Lembke Kent A.
Marsh & Fischmann & Breyfogle LLP
Oracle America Inc.
Szumny Jonathon A.
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