Using ASMCA to Administer Disk Groups for Earlier Database Releases
Use Oracle ASM Configuration Assistant (Oracle ASMCA) to create and modify disk groups when you install earlier Oracle AI Database and Oracle RAC database on Oracle Grid Infrastructure installations.
Oracle ASM is installed as part of an Oracle Grid Infrastructure installation, with Oracle Clusterware. You can not use Oracle Database Configuration Assistant (Oracle DBCA) to perform administrative tasks on Oracle ASM.
See Also:
Oracle Automatic Storage Management Administrator's Guide for details about configuring disk group compatibility for databases with Oracle Grid Infrastructure 26ai.