Oracle Message ORA-09884 - Two Task interface: SID doenst match current PU

ERRORTwo Task interface: SID doenst match current PU
CAUSEYou are trying to start oracle on another PU than you configured oracle on or there is no entry for this SID in oratab file.
ACTIONStart oracle with this SID on its designated PU (see oratab file). Or install the new database with SID.