If conformity between the source and target databases is lost because of an error at the source system, you must re-create the target database. Synchronize the data linkage environments at the source and target, initialize them, then re-create the target database on the basis of the source database.

If an error occurs at a source system while importing update information from multiple source systems into a single target system, you can initialize the import processing for only the erroneous source system by using partial initial start at the target system. In this case, execute partial initial start for the import processing from the erroneous source system only, and then re-create the target database corresponding to the erroneous source system.

To re-create the target database when importing from multiple source systems:

1. Shut down the database subject to data linkage at the source system where the error occurred, then suppress updating of the database.
2. If the source system is a HiRDB, terminate the source Datareplicator with the hdestop command. If the source system is a mainframe, terminate the source XDM/DS.
3. Terminate the target Datareplicator with the hdsstop command.
4. Re-create only the target database corresponding to the erroneous source system on the basis of the source database. In this case, the HiRDB Dataextractor enables you to efficiently create the target database from the source database.
5. Initialize the data linkage environment at the source system.
   If the source system is a HiRDB, initialize the source Datareplicator's environment (with the hdestart -i command).
   If the source system is a mainframe, initialize the source XDM/DS's environment.
   
6. Execute partial initial start of the target Datareplicator specifying the erroneous source system (with the hdsstart -i -D command).
7. If the source system is a HiRDB, start the source Datareplicator with the hdestart command. If the source system is a mainframe, start the source XDM/DS.
8. Release from shutdown status the source database that is subject to data linkage.