Apparatus and storage system for controlling acquisition of...

Details Apparatus and storage system for controlling acquisition of... Apparatus and storage system for controlling acquisition of...

2007-12-17

2008-12-02

Duncan, Marc (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S015000, C707S793000, C707S793000

Reexamination Certificate

active

07461293

ABSTRACT:
A DBMS performs a checkpoint process for maintaining consistency of data. A snapshot acquisition control program detects the checkpoint process externally to the DBMS and creates a snapshot in an external storage according to the timing of the checkpoint. Correspondence between checkpoints and snapshots is maintained in a CP-SH correspondence management table to make it possible to restore in a short time data at the time of an arbitrary checkpoint.

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