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Thanks a lot!<br>
<br>
I'm running 2.5.3 on the clients as well. When I try to run<br>
<br>
lctl set_param lustre-OST0003-osc*.active=0<br>
<br>
lustre complains with:<br>
<br>
set_param: /proc/{fs,sys}/{lnet,lustre}/lustre-OST0003-osc*/active<br>
<br>
so there seems to be a path issue here, since there is a file<br>
<br>
/proc/fs/lustre/osc/lustre-OST0003-osc-ffff880c7cbc1800/active<br>
<br>
which indeed already has the content "0".<br>
<br>
Regarding "writeconf" (thanks for this hint as well) I was a bit
scared of using it since the manual states that it should be used
with caution, and since performance tests indicate that read and
writes are performed with the expected speed (so at the moment I
don't see any other problem than "df" running slow). Still suspect I
have done something wrong, since it worked OK before the reboot.<br>
<br>
Thanks!<br>
<br>
/jon<br>
<br>
<div class="moz-cite-prefix">On 11/26/2014 06:00 PM, Alexander I
Kulyavtsev wrote:<br>
</div>
<blockquote cite="mid:E7025AEE-C656-483D-9B92-4AAD4CC9A8E4@fnal.gov"
type="cite">
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charset=windows-1252">
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<div>Try</div>
<div>
<div style="margin: 0px; font-size: 14px; font-family: Monaco;
color: rgb(245, 245, 245); background-color: rgb(0, 0, 0);
position: static; z-index: auto;">
/usr/sbin/lctl set_param osc.lustre-OST0001-*.active=0</div>
</div>
<div><br>
</div>
<div>as workarownd on client host, with proper names for
filesystem and ost names for all retired OSTs.</div>
<div><br>
</div>
<div>We had 'df' hanging on client after we retired some OSTs on
1.8.9 system and now keep this mantra in rc.local . </div>
<div><br>
</div>
<div>What client version do you have, 2.5.3 or 1.8.x?</div>
<div><br>
</div>
<div>Alex.</div>
</div>
<br>
<div>
<div>On Nov 26, 2014, at 6:59 AM, Jon Tegner <<a
moz-do-not-send="true" href="mailto:tegner@foi.se">tegner@foi.se</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div bgcolor="#FFFFFF" text="#000000">Hi!<br>
<br>
I recently got some help regarding removing an OSS/OST from
the file system. Last thing I did was to permanently remove
it with (on the MDS):<br>
<pre wrap=""><big>lctl conf_param ost_name.osc.active=0</big></pre>
This all seems to be working, and on the clients, the
command<br>
<br>
<pre wrap=""><big>lctl dl</big></pre>
<br>
indicates the OSS/OST is inactive. However, after a reboot
of the clients the same command no longer indicates the
removed OSS/OST to be inactive. Besides, the command<br>
<br>
<pre wrap="">df
</pre>
Takes almost 2 minutes to complete.<br>
<br>
I'm probably doing something really stupid here, and would
be happy if someone could tell me what it is ;-)<br>
<br>
Running 2.5.3.<br>
<br>
Regards,<br>
<br>
/jon<br>
</div>
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