You must perform this step both for migration and at initial installation.
Use the new I/O configuration definition to IPL the system. The following messages are issued and can be used as verification that the IPL of the system is successful.
CBR8001I OAM1 subsystem initialization starting.
CBR8007I No DB2 SSID or the DB2 SSID value of "NONE" has been specified. OTIS
subsystem cannot successfully initialize.
CBR8002I OAM1 subsystem initialization completed.