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<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'>Thanks Sunil,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'>I’ll have to check that
next time if it occurs as the server only just got re-booted and issue has now
gone.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'>Neil<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
lang=EN-US style='font-size:12.0pt;color:windowtext'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight:bold'>From:</span></font></b><font
size=2 color=black face=Tahoma><span lang=EN-US style='font-size:10.0pt;
font-family:Tahoma;color:windowtext'> Sunil Mushran [mailto:sunil.mushran@oracle.com]
<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, 17 June 2011 4:33 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Neil Campbell<br>
<b><span style='font-weight:bold'>Cc:</span></b> ocfs2-users@oss.oracle.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Ocfs2-users] Unable
to umount a filesystem - OCFS still thinks it has it mounted?þ</span></font><font
color=black><span lang=EN-US style='color:windowtext'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>Check /proc/mounts. That's the kernels view of the
mounts.<br>
<br>
mount looks at /etc/mtab. And ocfs2 1.2 adds and removes<br>
entries /proc/fs/ocfs2 during mount/umount.<br>
<br>
Also, see if there are relevant errors in dmesg.<br>
<br>
On 06/16/2011 07:16 PM, Neil Campbell wrote: <o:p></o:p></span></font></p>
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</xml><![endif]-->Hi all, <br>
<br>
Not sure what has happened but I am trying to remove a directory that I thought
was copied from an OCFS filesystem.<br>
<br>
When I try and remove it I get the typical Device or resource busy error.<br>
<br>
This is on </span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>RHEL 4 update 8
kernel 2.6.9-89.0.26.ELsmp</span></font> running <font size=2><span
style='font-size:10.0pt'>OCFS2 version </span></font><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>OCFS2
1.2.9 Mon Jan 17 07:38:31 EST 2011 (build 5e8325ec7f66b5189c65c7a8710fe8cb)<br>
</span></font><font size=2><span style='font-size:10.0pt'><br>
</span></font>Running lsof (as root) on the directory returns nothing.<br>
<br>
If I do a mount | grep ocfs I get the following (which is what I expect)<u5:p></u5:p><o:p></o:p></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> #
mount | grep ocfs</span></font><font size=2><span style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>ocfs2_dlmfs on /dlm type ocfs2_dlmfs (rw)</span></font><font
size=2><span style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>/dev/emcpowerq1 on /d00/cfs type ocfs2
(rw,_netdev,heartbeat=local)</span></font><font size=2><span style='font-size:
10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>/dev/emcpowere1 on /d00/html type ocfs2
(rw,_netdev,heartbeat=local)</span></font><o:p></o:p></p>
<u5:p></u5:p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'><br>
However, under cat /proc/fs/ocfs2 there are 3 device entries <u5:p></u5:p><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=black
face="Times New Roman"><span style='font-size:10.0pt'>l</span></font><font
size=2 face="Courier New ;"><span style='font-size:10.0pt;font-family:"Courier New \;"'>s
-l /proc/fs/ocfs2/</span></font><font size=2><span style='font-size:10.0pt'><br>
<br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>dr-xr-xr-x 2 root root 0 Jun 9 15:51
120_257</span></font><font size=2><span style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>dr-xr-xr-x 2 root root 0 Jun 9 15:51
120_65</span></font><font size=2><span style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>dr-xr-xr-x 2 root root 0 Jun 9 15:51
120_66</span></font><font size=2><span style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>-r--r--r-- 1 root root 0 Jun 9 15:51
nodename</span></font><font size=2><span style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>-r--r--r-- 1 root root 0 Jun 9 15:51
version</span></font><o:p></o:p></p>
<u5:p></u5:p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'><br>
But on the other 3 servers in this cluster there are only 2<br>
<br>
If I look at /dev for those devices they are as follows<u5:p></u5:p><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>[root@dc-c02b01-app01
log]# ls -l /dev | grep 120 | egrep '257|65|66'</span></font><font size=2><span
style='font-size:10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>brw------- 1 root root 120, 65
Feb 2 08:16 emcpowere1</span></font><font size=2><span style='font-size:
10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>brw------- 1 root root 120, 66
Feb 2 08:16 emcpowere2</span></font><font size=2><span style='font-size:
10.0pt'><br>
</span></font><font size=2 face="Courier New ;"><span style='font-size:10.0pt;
font-family:"Courier New \;"'>brw------- 1 root root 120, 257 Feb 2
08:16 emcpowerq1</span></font><o:p></o:p></p>
<u5:p></u5:p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><br>
emcpowere2 should be umounted and doesn't show up when running mount, but it
seems OCFS still thinks it is mounted.<br>
<br>
So what can I do to release this ?<br>
<br>
Many thanks<br>
Neil<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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