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ASM diskgroup FREE_MB (v$asm_diskgroup) information incorrect? (or how to reclaim the free space)

2734617Aug 27 2014 — edited Aug 29 2014

When I check the ASM disk groups,  I see that only ~112 G left out of 7 T in DATA but when I check from ASMCMD I see only 1.4 T used. Where has the difference gone and how can I reclaim it?

SQL> select GROUP_NUMBER,NAME,TOTAL_MB,FREE_MB,USABLE_FILE_MB from v$asm_diskgroup ;

GROUP_NUMBER NAME                             TOTAL_MB    FREE_MB USABLE_FILE_MB

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

           1 DATA                              7372800     112504        -208258

           2 RECO                              9796800    5100308        1373542

           3 REDO                               763120     707204         108548

ASMCMD> lsdg

State    Type  Rebal  Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  Name

MOUNTED  HIGH  N         512   4096  4194304   7372800   112504           737280         -208258              0             Y  DATA/

MOUNTED  HIGH  N         512   4096  4194304   9796800  5100308           979680         1373542              0             N  RECO/

MOUNTED  HIGH  N         512   4096  4194304    763120   707204           381560          108548              0             N  REDO/

ASMCMD> pwd

+

ASMCMD> ls

DATA/

RECO/

REDO/

ASMCMD> du DATA

Used_MB      Mirror_used_MB

1395328             4185984

ASMCMD> cd DATA

ASMCMD> ls

BEANDEV/

BEANS/

BEANTSTL/

SLX81TST/

beanstore-c/

ASMCMD> du *

Used_MB      Mirror_used_MB

1395328             4185984

ASMCMD>

ASMCMD> du BEANDEV/

Used_MB      Mirror_used_MB

  98324              294972

ASMCMD> du BEANS/

Used_MB      Mirror_used_MB

513724             1541172

ASMCMD> du BEANTSTL/

Used_MB      Mirror_used_MB

391540             1174620

ASMCMD> du SLX81TST/

dUsed_MB      Mirror_used_MB

391468             1174404

ASMCMD> u beanstore-c/

Used_MB      Mirror_used_MB

    272                 816


This post has been answered by Maran Viswarayar on Aug 27 2014
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