You must initialize the Datareplicators when you start data linkage for the first time after you have configured the environment. For details, see 6.2 Initialization procedure at the environment configuration stage.

To start the target system:

1. Start the target database (HiRDB or XDM E2).
2. Start the data linkage product (Datareplicator or XDM/DS) at the target system.

If the target system is not active during data transmission, the source system checks the target system for its startup status at each transmission interval and starts transmission once it detects that the target system has started. If the source system cannot send data, its resources (such as extraction information queue files and system log file) might become full. For this reason, it is advisable to start the source system after the target systems have completed their startup procedure.

To start the source system:

1. Start the data linkage product (Datareplicator or XDM/DS) at the source system.
2. Start the source database (HiRDB or XDM E2).

You can start the source Datareplicator whether the source HiRDB is active. However, if the source Datareplicator is not active while the source HiRDB is running, the system log file might become full, resulting in forced termination of the source database or a data linkage error.

When the target and source systems start normally, data linkage begins in accordance with the system definitions. For details about how to handle data linkage processing at a Datareplicator source system, see 6.4.1 Handling of extraction processing. For details about how to handle data linkage processing at a target system, see 6.7.1 Handling of import processing. For details about how to handle data linkage processing at XDM/DS source and target systems, see the manual VOS3 XDM Data Linkage Facility XDM/DS Operation.

To terminate a data linkage system application, first terminate the source system.

To terminate the source system:

1. Terminate the source database (HiRDB or XDM E2).
2. Terminate the data linkage product (Datareplicator or XDM/DS) at the source system.

For details about HiRDB termination, see the HiRDB Version 9 System Operation Guide. For details about source Datareplicator termination, see 6.3 Startup and termination of the source Datareplicator. For details about how to terminate XDM/DS, see the manual VOS3 XDM Data Linkage Facility XDM/DS Operation.

Terminate the target system.

To terminate a target system:

1. Terminate the data linkage product (Datareplicator or XDM/DS) at the target system.
2. Terminate the target database (HiRDB or XDM E2).

For details about target Datareplicator termination, see 6.6 Startup and termination of the target Datareplicator. For details about HiRDB termination, see the HiRDB Version 9 System Operation Guide. For details about how to terminate XDM/DS, see the manual VOS3 XDM Data Linkage Facility XDM/DS Operation.