GV$ASM_DISKGROUP

select
g.inst_id,               -- INST_ID NUMBER
g.number_kfgrp,          -- GROUP_NUMBER NUMBER
g.name_kfgrp,            -- NAME VARCHAR2(30)
g.sector_kfgrp,          -- SECTOR_SIZE NUMBER
g.blksize_kfgrp,         -- BLOCK_SIZE NUMBER
g.ausize_kfgrp,          -- ALLOCATION_UNIT_SIZE NUMBER
decode                   -- STATE VARCHAR2(11)
  (g.state_kfgrp, 0, 'INVALID', 1, 'UNKNOWN', 2, 'DISMOUNTED', 3, 'CREATING', 4, 'MOUNTING', 5, 'MOUNTED', 6, 'DISMOUNTING', 7, 'CONNECTED', 8, 'BROKEN', 9, 'CONNECTING', 10, 'BREAKING', 11, 'DROPPING'),
decode                   -- TYPE VARCHAR2(6)
  (g.type_kfgrp, 1, 'EXTERN', 2, 'NORMAL', 3, 'HIGH'),
(
select
sum (d.totmb_kfdsk) 
from
x$kfdsk d 
where
g.number_kfgrp = d.grpnum_kfdsk),
(
select
sum (d.totmb_kfdsk - d.usedmb_kfdsk) 
from
x$kfdsk d 
where
g.number_kfgrp = d.grpnum_kfdsk) 
from
x$kfgrp g 
where
state_kfgrp != 0
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