[Oracle DataBase Server 12.1 installation on Oracle Linux 6.7 with ASM and GRID]: Creating ASM disks groups

$ asmca

ASM DISKGROUPS

To get some information about disk groups:

$ asmcmd

ASMCMD> ls
ARCH/
DATA/


ASMCMD> lsdg
State    Type    Rebal  Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  Name
MOUNTED  NORMAL  N         512   4096  1048576     81918    81810                0           40905              0             N  ARCH/
MOUNTED  NORMAL  N         512   4096  1048576    163836   163645            40959           61343              0             N  DATA/


ASMCMD> exit