[Ocfs2-users] ocfs2 - disk usage inconsistencies
Matthew Flusche
Matthew.Flusche at tvguide.com
Mon Sep 25 11:22:47 PDT 2006
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
>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>
>>>
>>>
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>>
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