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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#000040;mso-fareast-language:EN-US">Is the MDT being mounted on the same node as the MGT? The ordering of the servicenode flags is (or was) significant for the first time
the target is mounted, and if the services will run on different nodes, the servicenode parameters on the MDT should be swapped. And confirm that the /mdt directory exists on the server being used to mount the target.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#000040;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#000040;mso-fareast-language:EN-US">Malcolm.</span><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#000040;mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#000040;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Parag Khuraswar <parag_k@citilindia.com><br>
<b>Date: </b>Wednesday, 1 November 2017 at 10:21 pm<br>
<b>To: </b>'Raj' <rajgautam@gmail.com>, Lustre discussion <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>Re: [lustre-discuss] mdt mounting error<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi,</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">For mgt –</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">mkfs.lustre --servicenode=10.2.1.204@o2ib --servicenode=10.2.1.205@o2ib --mgs /dev/mapper/mpathc</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">For mdt
</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">mkfs.lustre --fsname=home --mgsnode=10.2.1.204@o2ib --mgsnode=10.2.1.205@o2ib --servicenode=10.2.1.204@o2ib --servicenode=10.2.1.205@o2ib
--mdt --index=0 /dev/mapper/mpatha</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Regards,</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Parag</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><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"> Raj [mailto:rajgautam@gmail.com]
<br>
<b>Sent:</b> Wednesday, November , 2017 4:46 PM<br>
<b>To:</b> Parag Khuraswar; Lustre discussion<br>
<b>Subject:</b> Re: [lustre-discuss] mdt mounting error</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">What options in mkfs.lustre did you use to format with lustre?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:36.0pt">On Wed, Nov 1, 2017 at 6:14 AM Parag Khuraswar <<a href="mailto:parag_k@citilindia.com">parag_k@citilindia.com</a>> wrote:<o:p></o:p></p>
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<span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Raj,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Yes, /dev/mapper/mpatha available.
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I could format and mount using ext4.</span><o:p></o:p></p>
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<span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<span style="font-family:"Calibri",sans-serif;color:#1F497D">Regards,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-family:"Calibri",sans-serif;color:#1F497D">Parag</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<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"> Raj [mailto:<a href="mailto:rajgautam@gmail.com" target="_blank">rajgautam@gmail.com</a>]
<br>
<b>Sent:</b> Wednesday, November , 2017 4:39 PM<br>
<b>To:</b> Parag Khuraswar; Lustre discussion<br>
<b>Subject:</b> Re: [lustre-discuss] mdt mounting error</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt;margin-left:36.0pt">
Parag, <br>
Is the device /dev/mapper/mpatha available? <br>
If not, the multipathd may not have started or the multipath configuration may not be correct.
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
On Wed, Nov 1, 2017 at 5:18 AM Parag Khuraswar <<a href="mailto:parag_k@citilindia.com" target="_blank">parag_k@citilindia.com</a>> wrote:<o:p></o:p></p>
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<span style="font-size:14.0pt;color:#365F91">Hi,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91">I am getting below error while mounting mdt. Mgt is mounted.
</span><o:p></o:p></p>
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<span style="font-size:14.0pt;color:#365F91"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91">Please suggest</span><o:p></o:p></p>
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<span style="font-size:14.0pt;color:#365F91"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91">[root@mds2 ~]# mount -t lustre /dev/mapper/mpatha /mdt</span><o:p></o:p></p>
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<span style="font-size:14.0pt;color:#365F91">mount.lustre: mount /dev/mapper/mpatha at /mdt failed: No such file or directory</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91">Is the MGS specification correct?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91">Is the filesystem name correct?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91">If upgrading, is the copied client log valid? (see upgrade docs)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="font-size:14.0pt;color:#365F91"> </span><o:p></o:p></p>
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<span style="color:#365F91">Regards,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="color:#365F91">Parag</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt">
<span style="color:#365F91"> </span><o:p></o:p></p>
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<o:p></o:p></p>
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