[Ocfs2-users] ocfs2 - disk usage inconsistencies
Sunil Mushran
Sunil.Mushran at oracle.com
Mon Sep 25 15:08:48 PDT 2006
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
>>>>
>>>>
>>>>
>>>>
>>>>
> ------------------------------------------------------------------------
>
>>
>>
>>>
>>>
>>>
>>>> _______________________________________________
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>>>> Ocfs2-users at oss.oracle.com
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>>>>
>>>>
>>>>
>>>>
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>>>
>
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