dbca -configureASM
[-asmSysPassword <SYS password for ASM instance>]
[-diskString <disk discovery path to be used by ASM>]
[-diskList <comma seperated list of disks for the database area disk group>
-diskGroupName <database area disk group name>
-redundancy <HIGH|NORMAL|EXTERNAL>]]
[-recoveryDiskList <comma seperated list of disks for the database area disk group>
-recoveryGroupName <database area disk group name>
-recoveryGroupRedundancy <HIGH|NORMAL|EXTERNAL>]
[-emConfiguration <CENTRAL|NONE>
-centralAgent <Enterprise Manager central agent home>]]