[Ocfs2-users] ocfs2 - disk usage inconsistencies

Matthew Flusche Matthew.Flusche at tvguide.com
Mon Sep 25 15:16:06 PDT 2006



I have since formatted the new file system (I'm testing different block
sizes).  But here is the output from the original file system:

[root at tul1tmapp1 ~]# echo "ls -l //" | debugfs.ocfs2 /dev/emcpowera
debugfs.ocfs2 1.2.1
debugfs:        10              drwxr-xr-x   6     0     0
4096  2-May-2006 16:11 .
        10              drwxr-xr-x   6     0     0            4096
2-May-2006 16:11 ..
        11              -rw-r--r--   1     0     0               0
2-May-2006 16:11 bad_blocks
        12              -rw-r--r--   1     0     0          835584
2-May-2006 16:11 global_inode_alloc
        13              -rw-r--r--   1     0     0           16384
2-May-2006 16:11 slot_map
        14              -rw-r--r--   1     0     0         1048576
2-May-2006 16:11 heartbeat
        15              -rw-r--r--   1     0     0     53687091200
2-May-2006 16:11 global_bitmap
        16              drwxr-xr-x   2     0     0          774144
10-Sep-2006 00:08 orphan_dir:0000
        17              drwxr-xr-x   2     0     0            4096
2-May-2006 16:11 orphan_dir:0001
        18              drwxr-xr-x   2     0     0           94208
5-Jul-2006 17:13 orphan_dir:0002
        19              drwxr-xr-x   2     0     0            4096
2-May-2006 16:11 orphan_dir:0003
        20              -rw-r--r--   1     0     0        12582912
2-May-2006 16:11 extent_alloc:0000
        21              -rw-r--r--   1     0     0               0
2-May-2006 16:11 extent_alloc:0001
        22              -rw-r--r--   1     0     0               0
2-May-2006 16:11 extent_alloc:0002
        23              -rw-r--r--   1     0     0               0
2-May-2006 16:11 extent_alloc:0003
        24              -rw-r--r--   1     0     0      3099590656
2-May-2006 16:11 inode_alloc:0000
        25              -rw-r--r--   1     0     0      1879048192
2-May-2006 16:11 inode_alloc:0001
        26              -rw-r--r--   1     0     0      3137339392
2-May-2006 16:11 inode_alloc:0002
        27              -rw-r--r--   1     0     0               0
2-May-2006 16:11 inode_alloc:0003
        28              -rw-r--r--   1     0     0       268435456
2-May-2006 16:11 journal:0000
        29              -rw-r--r--   1     0     0       268435456
2-May-2006 16:11 journal:0001
        30              -rw-r--r--   1     0     0       268435456
2-May-2006 16:11 journal:0002
        31              -rw-r--r--   1     0     0       268435456
2-May-2006 16:11 journal:0003
        32              -rw-r--r--   1     0     0               0
2-May-2006 16:11 local_alloc:0000
        33              -rw-r--r--   1     0     0               0
2-May-2006 16:11 local_alloc:0001
        34              -rw-r--r--   1     0     0               0
2-May-2006 16:11 local_alloc:0002
        35              -rw-r--r--   1     0     0               0
2-May-2006 16:11 local_alloc:0003
        36              -rw-r--r--   1     0     0               0
2-May-2006 16:11 truncate_log:0000
        37              -rw-r--r--   1     0     0               0
2-May-2006 16:11 truncate_log:0001
        38              -rw-r--r--   1     0     0               0
2-May-2006 16:11 truncate_log:0002
        39              -rw-r--r--   1     0     0               0
2-May-2006 16:11 truncate_log:0003
debugfs:

-----Original Message-----
From: Sunil Mushran [mailto:Sunil.Mushran at oracle.com] 
Sent: Monday, September 25, 2006 5:09 PM
To: Matthew Flusche
Cc: Ocfs2-users at oss.oracle.com
Subject: Re: [Ocfs2-users] ocfs2 - disk usage inconsistencies

Do:
# echo "ls -l //" | debugfs.ocfs2 /dev/sdX

This will list the sizes of the system files. Email me the info.

Matthew Flusche wrote:
> I created another 50 GB OCFS2 file system with the same parameters
(16k
> cluster 4k block) and copied the contents of the original file system.
> My 26GB of data only takes up 38GB now (43 GB on the original file
> system).  After I delete all the contents of the new file system,
there
> is still 3.7 GB used.  Any ideas?
>
> -----Original Message-----
> From: ocfs2-users-bounces at oss.oracle.com
> [mailto:ocfs2-users-bounces at oss.oracle.com] On Behalf Of Matthew
Flusche
> Sent: Sunday, September 24, 2006 3:06 PM
> To: Sunil Mushran
> Cc: Ocfs2-users at oss.oracle.com
> Subject: RE: [Ocfs2-users] ocfs2 - disk usage inconsistencies
>
> I unmounted the file system from each node and ran the fsck.ocfs2 on
it.
> That cleaned up the orphan_dirs but I did not get my 17 GB of space
> back.   Any other suggestions?  Am I going to have to
> backup,format,restore to fix this?
>
> -----Original Message-----
> From: Sunil Mushran [mailto:Sunil.Mushran at oracle.com] 
> Sent: Wednesday, September 20, 2006 2:31 PM
> To: Matthew Flusche
> Cc: Ocfs2-users at oss.oracle.com
> Subject: Re: [Ocfs2-users] ocfs2 - disk usage inconsistencies
>
> Yes.
>
> Matthew Flusche wrote:
>   
>> When I stat the only file listed in //orphan_dir:0002 it shows 0
>> clusters.  There are only directories listed in //orphan_dir:0000 and
>> none of the directories have contents.  So my next courses of action
>> (since I don't know what has these unlinked files opened) would be to
>> stop every process accessing this file system?  Possibly umount/mount
>> the file system? would fsck.ocfs2 clean this up?
>>
>> -----Original Message-----
>> From: Sunil Mushran [mailto:Sunil.Mushran at oracle.com] 
>> Sent: Wednesday, September 20, 2006 1:52 PM
>> To: Matthew Flusche
>> Cc: Ocfs2-users at oss.oracle.com
>> Subject: Re: [Ocfs2-users] ocfs2 - disk usage inconsistencies
>>
>> Another node or that node itself.
>>
>> As far as the filesize goes, "ls -l" does not give the ondisk size.
>> Do "stat <inodenum>" on the unlinked files and see the "Clusters".
>>
>> Matthew Flusche wrote:
>>   
>>     
>>> There has been a lot of file system activity recently.
>>>
>>> I have files in orphan_dir:0000 and orphan_dir:0002.  But that
>>>       
> doesn't
>   
>>> seem to account for the 17 GB missing.  The truncate logs seem
clean.
>>> So having files in orphan_dir:0000 is telling me that the node in
>>>       
> slot
>   
>>>     
>>>       
>> 0
>>   
>>     
>>> deleted files and another node(s) still has the file open, correct?
>>>
>>> Matt
>>>
>>> debugfs: ls -l //orphan_dir:0000
>>>         16              drwxr-xr-x  13     0     0          774144
>>> 10-Sep-2006 00:08 .
>>>         10              drwxr-xr-x   6     0     0            4096
>>> 2-May-2006 16:11 ..
>>>         3052182         drwxrwxrwx   0   501   500            4096
>>> 19-Jul-2006 17:50 00000000002e9296
>>>         8234094         drwxrwxrwx   0   501   500            4096
>>> 19-Jul-2006 17:50 00000000007da46e
>>>         13063783        drwxrwxrwx   0   501   500            4096
>>> 19-Jul-2006 17:50 0000000000c75667
>>>         7869995         drwxrwxrwx   0   501   500            4096
>>> 22-Aug-2006 13:27 000000000078162b
>>>         3741473         drwxrwxrwx   0   501   500            4096
>>> 22-Aug-2006 13:29 0000000000391721
>>>         3351057         drwxrwxrwx   0   501   500            4096
>>> 19-Jul-2006 17:50 0000000000332211
>>>         7842503         drwxrwxrwx   0   501   500            4096
>>> 19-Jul-2006 17:50 000000000077aac7
>>>         2056493         drwxrwxrwx   0   501   500            4096
>>> 5-Sep-2006 08:53 00000000001f612d
>>>         7861894         drwxrwxrwx   0   501   500            4096
>>> 5-Sep-2006 08:53 000000000077f686
>>>         1487817         drwxrwxrwx   0   501   500            4096
>>> 5-Sep-2006 08:53 000000000016b3c9
>>>         1702439         drwxrwxrwx   0   501   500            4096
>>> 5-Sep-2006 08:53 000000000019fa27
>>>
>>> debugfs: ls -l //orphan_dir:0002
>>>         18              drwxr-xr-x   2     0     0           94208
>>> 5-Jul-2006 17:13 .
>>>         10              drwxr-xr-x   6     0     0            4096
>>> 2-May-2006 16:11 ..
>>>         4301446         -rw-r--r--   0   503   500               0
>>> 12-Aug-2006 10:40 000000000041a286
>>>
>>> -----Original Message-----
>>> From: Sunil Mushran [mailto:Sunil.Mushran at oracle.com] 
>>> Sent: Wednesday, September 20, 2006 12:32 PM
>>> To: Matthew Flusche
>>> Cc: Ocfs2-users at oss.oracle.com
>>> Subject: Re: [Ocfs2-users] ocfs2 - disk usage inconsistencies
>>>
>>> Did you remove some large files recently? If so, check the
orphan_dir
>>> and truncate_log for all the slots.
>>>
>>> 1. Start debugfs:
>>> # debugfs.ocfs2 /dev/sdX
>>>
>>> 2. List system directory:
>>>  > ls -l //
>>>
>>> 3. List files in all orphan_dir(s):
>>>  > ls -l //orphan_dir:0000
>>>
>>> If there are files, means some process in the cluster is still using

>>> that file.
>>>
>>> 4. stat all trancate_log(s):
>>>  > stat //truncate_log:0000
>>>
>>> I will be surprised if you see any bits here. If there are, do 
>>> "sync;sync;sync;" on the
>>> appropriate node.
>>>
>>> 5. You can find the appropriate node by dumping the slotmap:
>>>  > slotmap
>>> Find the slot-to-nodenum mapping. Do the sync on that node.
>>>
>>> For this and more, refer to the on-disk format support guide.
>>>
>>>     
>>>       
>
http://oss.oracle.com/projects/ocfs2/dist/documentation/03-disk_format.p
>   
>>   
>>     
>>> df
>>>
>>> Matthew Flusche wrote:
>>>   
>>>     
>>>       
>>>> Hi all.
>>>>
>>>> I have a 50 GB OCFS2 file system. I'm currently using ~26GB of
space
>>>>         
>
>   
>>>> but df is reporting 43 GB used. Any ideas how to find out where the

>>>> missing 17GB is at?
>>>>
>>>> The file system was formatted with a 16K cluster & 4K block size.
>>>>
>>>> Thanks,
>>>>
>>>> Matt
>>>>
>>>>
>>>>     
>>>>       
>>>>         
>
------------------------------------------------------------------------
>   
>>   
>>     
>>>   
>>>     
>>>       
>>>> _______________________________________________
>>>> Ocfs2-users mailing list
>>>> Ocfs2-users at oss.oracle.com
>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>   
>>>>     
>>>>       
>>>>         
>>> _______________________________________________
>>> Ocfs2-users mailing list
>>> Ocfs2-users at oss.oracle.com
>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>   
>>>     
>>>       
>
> _______________________________________________
> Ocfs2-users mailing list
> Ocfs2-users at oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>
> _______________________________________________
> Ocfs2-users mailing list
> Ocfs2-users at oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>   



More information about the Ocfs2-users mailing list