ASM - Select

Select on ASM Instance or asmcmd

To see the free space
asmcmd lsdg

SELECT name, free_mb, total_mb, free_mb/total_mb*100 as percentage 

FROM v$asm_diskgroup;

SELECT name, free_mb/1024/1024 Fmb, total_mb/1024/1024 Tmb, 

free_mb/total_mb*100 as percentage 
FROM v$asm_diskgroup;

To see the ASM Volume Information 
asmcmd volinfo -G data volume1

SELECT volume_name, volume_device 

FROM V$ASM_VOLUME 
WHERE volume_name ='VOLUME1';

To see the ASM Attribute
select NAME, VALUE from V$ASM_ATTRIBUTE


Views
v$asm_attribute
v$asm_volumen
v$asm_diskgroup