DB2 uses the DB2SYSTEM name to identify a physical DB2 machine, system, or workstation within a network. On UNIX, the DB2SYSTEM name defaults to the TCP/IP hostname. On OS/2, you must specify the DB2SYSTEM name during install. On Windows 32-bit operating systems, you do not need to specify a DB2SYSTEM name; the DB2 setup program detects the Windows Computer name and assigns it to DB2SYSTEM.
When creating a DB2SYSTEM name, see General Naming Rules.
In addition, the name you specify: