The timing with which HiRDB Datareplicator linkage starts is explained below; it terminates when the source HiRDB terminates:

• Specification of pd_rpl_init_start=Y in the source HiRDB's system common definition
  To have HiRDB Datareplicator linkage resume following a normal startup, specify Y in the pd_rpl_init_start operand in HiRDB's system common definition.
  When pd_rpl_init_start=Y is specified, HiRDB Datareplicator linkage inherits the output status of the data linkage information in the system log from the previous source HiRDB and the system log extraction status at the source Datareplicator, regardless of whether the source HiRDB is being started or restarted.
  In the following cases, the source HiRDB initializes the extraction status and starts HiRDB Datareplicator linkage without inheriting the previous status, so in these cases you must re-create the target database before restarting HiRDB Datareplicator linkage because conformity between the source and target databases has been lost:
  
  • Forced normal start (pdstart dbdestroy)
  • Database initialization start (pdstart -i)
• Execution of the pdrplstart command
  If HiRDB Datareplicator linkage is started by the pdrplstart command, the previous status is inherited during a restart, but not during a normal start. You need to re-execute the pdrplstart command after starting HiRDB normally. Therefore, we recommend that you specify Y in the pd_rpl_init_start operand in the source HiRDB's system common definition.
  

HiRDB Datareplicator linkage is cancelled by the following methods:

• Execution of the pdrplstop command
• Modification of the pd_rpl_init_start operand in the source HiRDB's system common definition (changing the specification from Y to N or omitting the pd_rpl_init_start operand)

When HiRDB Datareplicator linkage is cancelled, conformity between the source and target databases is lost, in which case you must re-create the target database before restarting HiRDB Datareplicator linkage. For details about how to execute the pdrplstop command, see 6.5.6 Source HiRDB handling procedure.

The HiRDB Datareplicator linkage terminated by the pdrplstop command is inherited during a restart, but not during a normal start.

If you cancel data linkage by changing the pd_rpl_init_start operand, make sure that the value of the pd_rpl_hdepath operand is not changed.