<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">FYI, we need to move files.<div class=""><br class=""></div><div class="">Stepan<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">Begin forwarded message:</div><br class="Apple-interchange-newline"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">From: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">Harut Avakian <<a href="mailto:avakian@jlab.org" class="">avakian@jlab.org</a>><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Subject: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class=""><b class="">[Clas_offline] Fwd: ENP consumption of disk space under /work</b><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Date: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">June 1, 2017 at 5:01:24 PM GMT+2<br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">To: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">"<a href="mailto:clas_offline@jlab.org" class="">clas_offline@jlab.org</a>" <<a href="mailto:clas_offline@jlab.org" class="">clas_offline@jlab.org</a>><br class=""></span></div><br class=""><div class="">
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<br class=""><p class="">Dear All,</p><p class="">As you can see from the e-mail below, keeping all our work
disk space requires some additional funding.<br class="">
</p><p class="">Option 3 will inevitably impact on farm operations, removing of
~20% space from Lustre. </p><p class="">We can also choose something between options 1) and 3).<br class="">
</p><p class="">Please revise the content and move at least 75% of what is in
/work/clas to either /cache or /volatile? <br class="">
</p><p class="">The current Hall-B usage includes:<br class="">
</p><p class="">550G hallb/bonus<br class="">
1.5T hallb/clase1<br class="">
3.6T hallb/clase1-6<br class="">
3.3T hallb/clase1dvcs<br class="">
2.8T hallb/clase1dvcs2<br class="">
987G hallb/clase1f<br class="">
1.8T hallb/clase2<br class="">
1.6G hallb/clase5<br class="">
413G hallb/clase6<br class="">
2.2T hallb/claseg1<br class="">
3.9T hallb/claseg1dvcs<br class="">
1.2T hallb/claseg3<br class="">
4.1T hallb/claseg4<br class="">
2.7T hallb/claseg5<br class="">
1.7T hallb/claseg6<br class="">
367G hallb/clas-farm-output<br class="">
734G hallb/clasg10<br class="">
601G hallb/clasg11<br class="">
8.1T hallb/clasg12<br class="">
2.4T hallb/clasg13<br class="">
2.4T hallb/clasg14<br class="">
28G hallb/clasg3<br class="">
5.8G hallb/clasg7<br class="">
269G hallb/clasg8<br class="">
1.2T hallb/clasg9<br class="">
1.3T hallb/clashps<br class="">
1.8T hallb/clas-production<br class="">
5.6T hallb/clas-production2<br class="">
1.4T hallb/clas-production3<br class="">
12T hallb/hps<br class="">
13T hallb/prad<br class="">
</p><p class=""><br class="">
</p><p class="">Regards,</p>
Harut<br class="">
<div class="moz-forward-container"><br class="">
P.S. Few times we had crashes and they may also happen in
future, so keeping important files in /work is not recommended.<br class="">
You can see the list of lost files in
/site/scicomp/lostfiles.txt and
/site/scicomp/lostfiles-jan-2017.txt<br class="">
<br class="">
<br class="">
<br class="">
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<th align="RIGHT" nowrap="nowrap" valign="BASELINE" class="">Subject:
</th>
<td class="">ENP consumption of disk space under /work</td>
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<th align="RIGHT" nowrap="nowrap" valign="BASELINE" class="">Date:
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<td class="">Wed, 31 May 2017 10:35:51 -0400</td>
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<th align="RIGHT" nowrap="nowrap" valign="BASELINE" class="">From:
</th>
<td class="">Chip Watson <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:watson@jlab.org"><watson@jlab.org></a></td>
</tr>
<tr class="">
<th align="RIGHT" nowrap="nowrap" valign="BASELINE" class="">To: </th>
<td class="">Sandy Philpott <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:philpott@jlab.org"><philpott@jlab.org></a>,
Graham Heyes <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:heyes@jlab.org"><heyes@jlab.org></a>,
Ole Hansen <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:ole@jlab.org"><ole@jlab.org></a>,
Harut Avakian <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:avakian@jlab.org"><avakian@jlab.org></a>,
Brad Sawatzky <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:brads@jlab.org"><brads@jlab.org></a>,
Mark M. Ito <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:marki@jlab.org"><marki@jlab.org></a></td>
</tr>
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</table>
<br class="">
<br class="">
<pre class="">All,
As I have started on the procurement of the new /work file server, I
have discovered that Physics' use of /work has grown unrestrained over
the last year or two.
"Unrestrained" because there is no way under Lustre to restrain it
except via a very unfriendly Lustre quota system. As we leave some
quota headroom to accommodate large swings in usage for each hall for
cache and volatile, then /work continues to grow.
Total /work has now reached 260 TB, several times larger than I was
anticipating. This constitutes more than 25% of Physics' share of
Lustre, compared to LQCD which uses less than 5% of its disk space on
the un-managed /work.
It would cost Physics an extra $25K (total $35K - $40K) to treat the 260
TB as a requirement.
There are 3 paths forward:
(1) Physics cuts its use of /work by a factor of 4-5.
(2) Physics increases funding to $40K
(3) We pull a server out of Lustre, decreasing Physics' share of the
system, and use that as half of the new active-active pair, beefing it
up with SSDs and perhaps additional memory; this would actually shrink
Physics near term costs, but puts higher pressure on the file system for
the farm
The decision is clearly Physics', but I do need a VERY FAST response to
this question, as I need to move quickly now for LQCD's needs.
Hall D + GlueX, 96 TB
CLAS + CLAS12, 98 TB
Hall C, 35 TB
Hall A <unknown, still scanning>
Email, call (x7101), or drop by today 1:30-3:00 p.m. for discussion.
thanks,
Chip
</pre>
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