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<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">You're totally correct!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><b><span style="font-size:12.0pt;color:black">De :
</span></b><span style="font-size:12.0pt;color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> au nom de Sid Young via lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Répondre à : </b>Sid Young <sid.young@gmail.com><br>
<b>Date : </b>vendredi 26 février 2021 à 00:45<br>
<b>À : </b>lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Objet : </b>[EXTERNAL] [lustre-discuss] servicenode /failnode<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p><strong><span style="font-family:"Calibri",sans-serif;color:black;background:#FFFF99">CAUTION</span></strong><span style="color:black;background:#FFFF99">: This email originated from outside of the organization. Do not click links or open attachments unless
you can confirm the sender and know the content is safe.</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">G'Day all, <o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">I'm rebuilding my Lustre cluster again and in doing so I am trying to understand the role of the --servicenode option when creating an OST. There is an example in the doco shown as this:<o:p></o:p></p>
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<pre style="background:#F8F9FA;border:none;padding:0cm;white-space:pre-wrap;overflow-x:auto"><span style="font-size:10.5pt;color:black">[root@rh7z-oss1 system]# mkfs.lustre --ost \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> --fsname demo \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> --index 0 \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> --mgsnode 192.168.227.11@tcp1 \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> --mgsnode 192.168.227.12@tcp1 \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> --servicenode 192.168.227.21@tcp1 \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> --servicenode 192.168.227.22@tcp1 \<o:p></o:p></span></pre>
<pre style="background:#F8F9FA;border:none;padding:0cm"><span style="font-size:10.5pt;color:black">> /dev/dm-3<o:p></o:p></span></pre>
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<p class="MsoNormal" style="margin-left:35.4pt">But its not clear what the service node actually is.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Am I correct in saying the service nodes are the IP's of the two OSS servers that can manage this particular OST (the HA pair)?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Sid Young<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
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