Method and apparatus for processing a synchronizing marker for a

Details Method and apparatus for processing a synchronizing marker for a Method and apparatus for processing a synchronizing marker for a

1994-07-29

1997-04-22

Beausoliel, Jr., Robert W.

G06F 1134

Patent

active

056235992

ABSTRACT:
The present invention relates to event synchronization in asynchronous remote data duplexing, the synchronization being non-disruptive to application execution at a host device and to data copying at a remote site. The event sequence is characterized by embedding labeled tokens of write operations including addresses and periodic checkpoint lists there establishing a total ordering. Event synchronization is achieved by embedding at the host a synchronization request having a higher sequence number than that of some prior predetermined event and generating a responsive synchronization reply from the remote site to the host. The present invention finds use in the communication and remote duplex recording of financial events such as the rare event transfer of large monetary sums in a population of transfers of small sums.

REFERENCES:
patent: 4625081 (1986-11-01), Lotito et al.

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