Modifying instances

Instances are designed to be as independent as possible from the effects of subsequent installation and removal of products. On Linux and UNIX, you can update instances after the installation or removal of executables or components. On Windows, you run the db2iupdt command.

In most cases, existing instances automatically inherit or lose access to the function of the product being installed or removed. However, if certain executables or components are installed or removed, existing instances do not automatically inherit the new system configuration parameters or gain access to all the additional function. The instance must be updated.

If the database manager is updated by installing a Program Temporary Fix (PTF) or a patch, all the existing database instances should be updated using the db2iupdt command (root installations) or the db2nrupdt command (non-root installations).

You should ensure you understand the instances and database partition servers you have in an instance before attempting to change or delete an instance.