Running multiple instances concurrently (Windows)

You can run multiple instances concurrently in the same DB2® copy, or in different DB2 copies.

1. To run multiple instances concurrently in the same DB2 copy, using the command line:
   1. Set the DB2INSTANCE variable to the name of the other instance that you want to start by entering:

         set db2instance=another_instName

   2. Start the instance by entering the db2start command.
2. To run multiple instances concurrently in different DB2 copies, use either of the following methods:
   • Using the DB2 Command window from the Start > Programs > IBM DB2 Copy Name > Command Line Tools > DB2 Command Window: the Command window is already set up with the correct environment variables for the particular DB2 copy chosen.
   • Using db2envar.bat from a Command window:
     1. Open a Command window.
     2. Run the db2envar.bat file using the fully qualified path for the DB2 copy that you want the application to use:

        DB2_Copy_install_dir\bin\db2envar.bat

   After you switch to a particular DB2 copy, use the method specified in the preceding section, "To run multiple instances concurrently in the same DB2 copy", to start the instances.