Use of non-volatile memory to perform rollback function

Details Use of non-volatile memory to perform rollback function Use of non-volatile memory to perform rollback function

2006-06-06

2006-06-06

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S001000

Reexamination Certificate

active

07058849

ABSTRACT:
A mechanism and method for maintaining a consistent state in a non-volatile random access memory system without constraining normal computer operation is provided, thereby enabling a computer system to recover from faults, power loss, or other computer system failure without a loss of data or processing continuity. In a typical computer system, checkpointing data is either very slow, very inefficient or would not survive a power failure. In embodiments of the present invention, a non-volatile random access memory system is used to capture checkpointed data, and can later be used to rollback the computer system to a previous checkpoint. This structure and protocol can efficiently and quickly enable a computer system to recover from faults, power loss, or other computer system failure.

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