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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">The only requirement for upgrade ordering in the past was during the 1.8->2.x upgrade. In that case, 1.8 clients could connect to both 1.8 and 2.x servers, while 2.x clients can only connect
to 2.x servers. Since then there isn't a hard requirement for upgrade ordering, though we only test a few combinations of versions together.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Cheers, Andreas<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Andreas Dilger<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Lustre Principal Architect<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Intel High Performance Data Division</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
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<p class="MsoNormal">On 2016/06/22, 13:28, "lustre-discuss on behalf of Alexander I Kulyavtsev" <<a href="mailto:lustre-discuss-bounces@lists.lustre.org">lustre-discuss-bounces@lists.lustre.org</a> on behalf of
<a href="mailto:aik@fnal.gov">aik@fnal.gov</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Servers upgraded first or with clients. Alex.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Jun 22, 2016, at 11:01 AM, E.S. Rosenberg <<a href="mailto:esr+lustre@mail.hebrew.edu">esr+lustre@mail.hebrew.edu</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:Helvetica">I always understood the recommendation was to update the clients (and LNET Routers) before the servers and not the other way around?</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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