DB2 Version 9.7 for Linux, UNIX, and Windows

Running multiple instances concurrently (Windows)

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

About this task

To run multiple instances concurrently in the same DB2 copy, using the command line:

Set the DB2INSTANCE variable to the name of the other instance that you want to start by entering:
```
   set db2instance=<another_instName>
```
Start the instance by entering the db2start command.

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 → <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 section above, "To run multiple instances concurrently in the same DB2 copy", to start the instances.