[Ocfs2-users] ocfs2 - disk usage inconsistencies

[Matthew Flusche]

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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