This subsection describes how to downgrade Datareplicator.

1. Make sure that all extraction and import processing has been completed at the source and target Datareplicators (there is no more unextracted or unimported data).
2. Terminate HiRDB and Datareplicator normally. If you are using a HiRDB/Parallel Server, terminate all servers normally.
3. Uninstall Datareplicator.
4. Install the Datareplicator to which you are downgrading.
5. If you changed the following Datareplicator items at the time of upgrading, reset them to their previous status before you upgraded:
   
   • Various definition files
   • Gaiji mapping table
   • UOC routines
6. Initialize Datareplicator.
7. Start HiRDB and Datareplicator.

If this method cannot downgrade the Datareplicator, initialize the Datareplicator with the procedure described in 6.5.6(1) Handling procedure for re-creating the target database, and then downgrade it.