set serveroutput on
declare
v_diskgroup_name varchar2(50);
v_total_space number(12);
v_free_space number(12);
v_pct_free number(6,3);
begin
for diskgroup_rec in (select name from v$asm_diskgroup)
loop

— Get the total space for the current diskgroup

select (total_mb/1024) into v_total_space
from v$asm_diskgroup
where NAME = diskgroup_rec.name;

— Get the free space for the current diskgroup

select (free_mb/1024) into v_free_space
from v$asm_diskgroup
where NAME = diskgroup_rec.name;

— Calculate the percent free for the current diskgroup

v_pct_free := (v_free_space / v_total_space) * 100;
if v_pct_free < 10 then
dbms_output.put_line(diskgroup_rec.name|| ‘ Percentage Free is ‘ || v_pct_free ||’%’||’ as on ‘||to_char(sysdate,’dd-mm-yy hh24:mi:ss’));
else
dbms_output.put_line(‘No Diskgroup below 10%’);
end if;
end loop;
end;
/
spool off
exit;

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