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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">We've done it (in the manner you describe), but we do not do it on live systems, out of an abundance of caution. It's probably fine to do it live, but we always do it during downtime.
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<div>- Patrick Farrell<br>
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<div id="divRpF911931" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> lustre-discuss [lustre-discuss-bounces@lists.lustre.org] on behalf of Andrus, Brian Contractor [bdandrus@nps.edu]<br>
<b>Sent:</b> Wednesday, July 22, 2015 9:08 AM<br>
<b>To:</b> lustre-discuss@lists.lustre.org<br>
<b>Subject:</b> Re: [lustre-discuss] Adding MDT to Lustre 2.7<br>
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<p class="MsoNormal"><span style="color:#1F497D">So has anyone added DNE to an existing lustre installation?</span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D">Brian Andrus</span></p>
<p class="MsoNormal"><span style="color:#1F497D">ITACS/Research Computing</span></p>
<p class="MsoNormal"><span style="color:#1F497D">Naval Postgraduate School</span></p>
<p class="MsoNormal"><span style="color:#1F497D">Monterey, California</span></p>
<p class="MsoNormal"><span style="color:#1F497D">voice: 831-656-6238</span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif""> lustre-discuss [mailto:lustre-discuss-bounces@lists.lustre.org]
<b>On Behalf Of </b>Andrus, Brian Contractor<br>
<b>Sent:</b> Monday, July 20, 2015 11:37 AM<br>
<b>To:</b> lustre-discuss@lists.lustre.org<br>
<b>Subject:</b> [lustre-discuss] Adding MDT to Lustre 2.7</span></p>
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<p class="MsoNormal"> </p>
<p class="MsoNormal">All,</p>
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<p class="MsoNormal">I want to take advantage of the benefits of multiple MDTs, but am reticent about jumping in with a system with many users that may squeak if there is a hiccup.</p>
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<p class="MsoNormal">I am not seeing any recent (newer than 2013) documentation about how to go about adding an MDT to an existing system.</p>
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<p class="MsoNormal">Is this as simple as formatting a new MDT with an incremented index and mounting it?</p>
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<p class="MsoNormal"><span style="color:#1F497D">Brian Andrus</span></p>
<p class="MsoNormal"><span style="color:#1F497D">ITACS/Research Computing</span></p>
<p class="MsoNormal"><span style="color:#1F497D">Naval Postgraduate School</span></p>
<p class="MsoNormal"><span style="color:#1F497D">Monterey, California</span></p>
<p class="MsoNormal"><span style="color:#1F497D">voice: 831-656-6238</span></p>
<p class="MsoNormal"> </p>
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