This parameter specifies the Oracle system ID of an ASM instance.
asm_ora_sid = <asm_inst> | (<db_inst1>:<asm_inst1>, <db_inst2>:<asm_inst2>, <db_inst3>:<asm_inst3>, ...)
Default value: +ASM
Single instance:
asm_ora_sid = +ASM
RAC database:
asm_ora_sid = (RAC001:+ASM1, RAC002:+ASM2,
RAC003:+ASM3, RAC004:+ASM4)