[Oracle RAC 12.1 Installation on Oracle Linux 6.7 (ISCSI + ASM)]: Creating ASM disk groups

To launch the console for working with ASM disks, run the command (if needed)

$ asmca

Yes, I agree that too many resources are allocated for OCR. Really you need approximately 3 x 300 MB.

Just to get some information about disk groups

$ asmcmd

ASMCMD> ls