ACFS VOLUME SIZE MISMATCH BETWEEN V$ASM_ACFSVOLUMES AND V$ASM_DISK on size information

Hi

I'm using Oracle Linux :oraclelinux-release-6Server-7.0.5.x86_64.

The size information about my acfs volume is different depending on the dictionary view I'm using ( V$ASM_ACFSVOLUMES AND V$ASM_DISKGROUP).

1-LINUX DF -K

df -k  returned the right size information.

Filesystem           1K-blocks               Used           Available Use%      Mounted on

/dev/asm/acfscol1-176     103809024   292864      103516160   1%      /data/u01/app/grid/acfsmount/ocfs_sauvegarde

2-V$ASM_DISKGROUP

select name, total_mb, free_mb, round((free_mb/total_mb)*100,2) pct_free from v$asm_diskgroup  where total_mb != 0 order by name;

NAME                             TOTAL_MB    FREE_MB   PCT_FREE

------------------------------ ---------- ---------- ----------

ACFS                               102398        924         .9  ------------------------------------------------>wrong free_mb , mismatch!