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<p class="MsoNormal"><span style="font-size:11.0pt">You don’t specify which 2.12.x release that you are using but in theory it should be fine to continue to upgrade to newer 2.15.x releases as they are issued – we test interoperability with the latest 2.12.x
release as part of the pre-release validation for 2.15.x releases.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif;color:black">From:
</span></b><span style="font-family:"Calibri",sans-serif;color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of "Bertini, Denis Dr. via lustre-discuss" <lustre-discuss@lists.lustre.org><br>
<b>Reply-To: </b>"Bertini, Denis Dr." <D.Bertini@gsi.de><br>
<b>Date: </b>Monday, March 31, 2025 at 2:09 AM<br>
<b>To: </b>"lustre-discuss@lists.lustre.org" <lustre-discuss@lists.lustre.org><br>
<b>Cc: </b>"Penso, Victor" <V.Penso@gsi.de><br>
<b>Subject: </b>[lustre-discuss] interoperability between lustre client and lustre server version<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p><span style="font-family:"Calibri",sans-serif;color:black">Hi,<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">We have a server version 2.12 which can interoperate without problem with higher lustre client versions ( up to 2.15.6 at the moment ).<o:p></o:p></span></p>
<p><span style="font-family:"Calibri",sans-serif;color:black">My question is how long can we update the client version on our compute nodes without having problem with the "old" luster server version 2.12?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black">thanks in advance,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">---------</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Denis Bertini</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Abteilung: CIT</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Ort: SB3 2.265a</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Tel: +49 6159 71 2240</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Fax: +49 6159 71 2986</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">E-Mail: d.bertini@gsi.de</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">GSI Helmholtzzentrum für Schwerionenforschung GmbH</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Planckstraße 1, 64291 Darmstadt, Germany, www.gsi.de</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Commercial Register / Handelsregister: Amtsgericht Darmstadt, HRB 1528</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Managing Directors / Geschäftsführung:</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Professor Dr. Paolo Giubellino, Dr. Ulrich Breuer, Jörg Blaurock</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Chairman of the GSI Supervisory Board / Vorsitzender des GSI-Aufsichtsrats:</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:black">Ministerialdirigent Dr. Volkmar Dietz</span><span style="font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
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