Computer system fault recovery using distributed...

Details Computer system fault recovery using distributed... Computer system fault recovery using distributed...

2006-06-20

2006-06-20

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130, C714S004110, C709S223000, C707S793000, C707S793000

Reexamination Certificate

active

07065674

ABSTRACT:
Fault-recovery information for transactional operations between computer systems and the outcome of those operations is logged at the originating point of the units of work, such as source-computer systems, which may include client computers in a client/server system. By using these distributed logs of fault-recovery information, a target-computer system, which may include a server computer, can reconstruct the target-computer system's previous interaction with various source-computer systems. Source-computer systems may use a proxy server for logging fault-recovery information to persistent storage. A target-computer system may digitally sign the fault-recovery information it sends to a source-computer system thereby making the fault-recovery information's authenticity verifiable. Similarly, the target-computer system may encrypt the fault-recovery information before sending it to the source-computer system to preserve the privacy of the fault-recovery information.

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