Method and apparatus for archiving data during unexpected...

Details Method and apparatus for archiving data during unexpected... Method and apparatus for archiving data during unexpected...

2011-05-31

2011-05-31

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S005110, C713S340000

Reexamination Certificate

active

07954006

ABSTRACT:
A method and system for preventing loss of data in a computer interface board during power failure includes providing a secondary data path to a non-volatile storage element from a cache memory of the computer interface board. Components in the secondary data path, such as the cache memory and non-volatile storage element, are powered by a secondary power supply. The cache memory of the computer interface board is a volatile memory. The secondary data path with the non-volatile storage element enables reliable memory operation during both normal and power fail modes. A power failure at the computer interface board is detected. The power failure may result in incomplete transactional data within the cache memory. Upon detection of power failure, the incomplete transactional data at the cache memory is transmitted to the non-volatile storage element through the secondary data path using the power from the secondary power supply. The non-volatile storage element preserves the transactional data of the cache memory during power failure.

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