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<p class="MsoNormal">Is the MGS actually on tcp or is it on o2ib? Can you “lctl ping” the MGS LNet nid from the client where you’re trying to mount?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Chris Horn<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Christopher Johnston <chjohnst@gmail.com><br>
<b>Date: </b>Friday, November 17, 2017 at 3:17 PM<br>
<b>To: </b>lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>[lustre-discuss] 2.10.1 client fails to mount on 2.9 backend<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Just tested the new 2.10.1 client against one of my fileservers where I have 2.9 running. Works with 2.10.0 but not 2.10.1, is this expected?
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># mount -t lustre 172.30.69.90:/qstore /mnt<o:p></o:p></p>
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<p class="MsoNormal">mount.lustre: mount 172.30.69.90:/qstore at /mnt failed: No such file or directory<o:p></o:p></p>
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<p class="MsoNormal">Is the MGS specification correct?<o:p></o:p></p>
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<p class="MsoNormal">Is the filesystem name correct?<o:p></o:p></p>
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<p class="MsoNormal">If upgrading, is the copied client log valid? (see upgrade docs)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># dmesg -e | tail -4<o:p></o:p></p>
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<p class="MsoNormal">[Nov17 16:15] LustreError: 22344:0:(ldlm_lib.c:483:client_obd_setup()) can't add initial connection<o:p></o:p></p>
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<p class="MsoNormal">[ +0.009423] LustreError: 22344:0:(obd_config.c:608:class_setup()) setup MGC172.30.69.90@tcp failed (-2)<o:p></o:p></p>
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<p class="MsoNormal">[ +0.009755] LustreError: 22344:0:(obd_mount.c:203:lustre_start_simple()) MGC172.30.69.90@tcp setup error -2<o:p></o:p></p>
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<p class="MsoNormal">[ +0.010193] LustreError: 22344:0:(obd_mount.c:1505:lustre_fill_super()) Unable to mount (-2)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-Chris<o:p></o:p></p>
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