What is the procedure to create a custom database (non default charecterset)

Hi fellow dbas,

ODA 12.1.2.2.0

Oracle database 12c

I have a requirement to create a database with non default characterset.

I was able to create  database (SINGLE) through a custom parameter file created (./oakcli create db_config_params -conf db_config_Custom03) but the issue database is getting created in ACFS instead of ASM.

# ./oakcli show db_config_params -conf  db_config_Custom03 -detail

DATABASE_BLOCK_SIZE       =>    8192

DATABASE_LANGUAGE         =>    AMERICAN

DATABASE_CHARACTERSET     =>    WE8MSWIN1252

DATABASE_TERRITORY        =>    AMERICA

COMPONENT_LANGUAGES       =>    en

NLS_NCHAR_CHARACTERSET    =>    AL16UTF16

I am not sure what am I missing. Please advise.

Is dbca supported in ODA?

Thanks.