Mount/dismount asm diskgroups - oracle database script

-- For mount a diskgroup,(This is instance specific, for mounting on all nodes, run the same on all nodes)  SQL>alter diskgroup DATA mount;   or  asmcmd>mount DATA  -- For umount a diskgroup,(This is instance specific, for unmounting on all nodes, run the same on all nodes)  SQL>alter diskgroup DATA dismount;   or  asmcmd>umount DATA  -- To mount/Dismount all the diskgroups  SQL>alter diskgroup ALL mount;   SQL>alter diskgroup ALL dismount;