Post-installation tasks for Db2 database servers (Linux and UNIX)

After installing Db2 database on Linux® or UNIX systems, you must complete a number of tasks.

Listing Db2 database products installed on your system (Linux and UNIX)
On supported Linux and UNIX operating systems, the db2ls command lists the Db2 database products and features installed on your system, including the Db2 version 12.1 HTML documentation.
Validating your Db2 copy
The db2val command ensures that your Db2 copy is functioning properly.
Main menu entries for Db2 tools (Linux)
After installation, you can add several Db2 tools to the Main menu.
Disable file system caching for Db2 Linux on IBM Z
When running an instance of Db2 on an IBM Z Linux, you need to enable the DB2_DIRECT_IO registry variable to ensure data integrity.

Parent topic: Taking the first steps after installation