Patent
1994-07-27
1996-06-25
Beausoliel, Jr., Robert W.
39518204, G06F 1100
Patent
active
055308015
ABSTRACT:
A data restoring apparatus for saving data into second storage unit and for restoring the saved data back into the first storage unit after an abnormality occurs in a data processing system, whose program updates data comprising first data and second data stored in the first storage unit. The first data includes a plurality of data blocks and the second data specifies the relation between the data blocks. The present invention sets a checkpoint during execution of the program, saves a data block of the first data into the second storage unit when the data block is to be updated by the program, saves the second data into the second storage unit when the checkpoint is set, restores the first data and the second data, both saved in the second storage unit, into the first storage unit, and restarts the program from the checkpoint.
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Beausoliel, Jr. Robert W.
Fujitsu Limited
Wright Norman M.
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