| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that takes a long period and costs for identification of causes and system repairs as well as inconsistent data on both sites when inconsistent data caused by software bags, data alteration of ill-intentioned third parties, and destruction or the like are written while transmitting data for a remote copy used for duplex data. SOLUTION: A manager having a DBMS verifying method is arranged on each device connected with a primary site and a remote site. A checksum calculating method, for verifying data received by the manager at each unit at an application unit, such as the DBMS, by using a log sequential number, is changed. Grasping the inconsistent data found by the verification and processing specified by a system administrator are automatically carried out. COPYRIGHT: (C)2005,JPO&NCIPI
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