<font size=2 face="sans-serif">Hi Lohit,</font><br><br><font size=2 face="sans-serif">></font><font size=2 face="sans-serif">I
am thinking of using a single CES protocol cluster, with remote mounts
from 3 storage clusters.</font><br><font size=2 face="sans-serif">Technically this should work fine (assuming
all 3 clusters use the same uids/guids). However this has not been tested
in our Test lab. </font><br><br><br><font size=2 face="sans-serif">>One thing to watch, be careful if
your CES root is on a remote fs, as if that goes away, so do all CES exports.</font><br><font size=2 face="sans-serif">Not only the ces root file system is
a concern, the whole CES cluster will go down if any remote file systems
with NFS exports is not available. </font><br><font size=2 face="sans-serif">e.g. if remote cluster 1 is not available,
the CES cluster will unmount the corresponding file system which will lead
to a NFS failure on all CES nodes. </font><br><br><br><font size=2 face="sans-serif">Mit freundlichen Grüßen / Kind regards<br><br>Mathias Dietz<br><br>Spectrum Scale Development - Release Lead Architect (4.2.x)<br>Spectrum Scale RAS Architect<br>---------------------------------------------------------------------------<br>IBM Deutschland<br>Am Weiher 24<br>65451 Kelsterbach<br>Phone: +49 70342744105<br>Mobile: +49-15152801035<br>E-Mail: mdietz@de.ibm.com<br>-----------------------------------------------------------------------------<br>IBM Deutschland Research & Development GmbH<br>Vorsitzender des Aufsichtsrats: Martina Koederitz, Geschäftsführung: Dirk
WittkoppSitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht
Stuttgart, HRB 243294</font><br><br><br><br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">valleru@cbio.mskcc.org</font><br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">gpfsug main discussion
list <gpfsug-discuss@spectrumscale.org></font><br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">01/05/2018 16:34</font><br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">Re: [gpfsug-discuss]
Spectrum Scale CES and remote file system mounts</font><br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><br><hr noshade><br><br><br><font size=2 face="sans-serif">Thanks Simon. </font><br><font size=2 face="sans-serif">I will make sure i am careful about
the CES root and test nfs exporting more than 2 remote file systems.</font><br><font size=2 face="sans-serif"><br>Regards,<br>Lohit</font><br><font size=2 face="sans-serif"><br>On Apr 30, 2018, 5:57 PM -0400, Simon Thompson (IT Research Support) <S.J.Thompson@bham.ac.uk>,
wrote:</font><br><font size=2 face="sans-serif">You have been able to do this for some
time, though I think it's only just supported.<br><br>We've been exporting remote mounts since CES was added.<br><br>At some point we've had two storage clusters supplying data and at least
3 remote file-systems exported over NFS and SMB.<br><br>One thing to watch, be careful if your CES root is on a remote fs, as if
that goes away, so do all CES exports. We do have CES root on a remote
fs and it works, just be aware...<br><br>Simon<br>________________________________________<br>From: gpfsug-discuss-bounces@spectrumscale.org [gpfsug-discuss-bounces@spectrumscale.org]
on behalf of valleru@cbio.mskcc.org [valleru@cbio.mskcc.org]<br>Sent: 30 April 2018 22:11<br>To: gpfsug main discussion list<br>Subject: [gpfsug-discuss] Spectrum Scale CES and remote file system mounts<br><br>Hello All,<br><br>I read from the below link, that it is now possible to export remote mounts
over NFS/SMB.<br><br></font><a href=https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.0/com.ibm.spectrum.scale.v5r00.doc/bl1adv_protocoloverremoteclu.htm><font size=2 face="sans-serif">https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.0/com.ibm.spectrum.scale.v5r00.doc/bl1adv_protocoloverremoteclu.htm</font></a><font size=2 face="sans-serif"><br><br>I am thinking of using a single CES protocol cluster, with remote mounts
from 3 storage clusters.<br>May i know, if i will be able to export the 3 remote mounts(from 3 storage
clusters) over NFS/SMB from a single CES protocol cluster?<br><br>Because according to the limitations as mentioned in the below link:<br><br></font><a href=https://www.ibm.com/support/knowledgecenter/STXKQY_5.0.0/com.ibm.spectrum.scale.v5r00.doc/bl1adv_limitationofprotocolonRMT.htm><font size=2 face="sans-serif">https://www.ibm.com/support/knowledgecenter/STXKQY_5.0.0/com.ibm.spectrum.scale.v5r00.doc/bl1adv_limitationofprotocolonRMT.htm</font></a><font size=2 face="sans-serif"><br><br>It says “You can configure one storage cluster and up to five protocol
clusters (current limit).”<br><br><br>Regards,<br>Lohit<br>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></font><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><font size=2 face="sans-serif">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></a><tt><font size=2>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt><font size=2><br></font></tt><br><br><BR>