12c RAC - Conversion of Standard Cluster to Oracle Flex ASM Cluster

Step 1 : Login as 'oracle' user and execute 'asmca'

Step-2 : Check the disk groups and availability 

Step 3 : Choose option to convert to 'Oracle Flex ASM Cluster'

Step 4 : Execute the following script - conversion process will starts from here

Step 5 : Check the Cluster Mode and Cluster State after logging in to ASMCMD prompt.

[oracle@racnroll1 ~]$ asmcmd

ASMCMD> showversion
ASM version         : 12.1.0.1.0

ASMCMD> showclusterstate
Normal

ASMCMD> showclustermode
ASM cluster : Flex mode enabled