Oracle Solution for Error ora-09884

ORA-09884: Two Task interface: SID doens't match current PU

What triggered the Error:

You are trying to start oracle on another PU than you configured oracle on or there is no entry for this SID in oratab file.

What should we do to fix it:

Start oracle with this SID on its designated PU (see oratab file). Or install the new database with SID.