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<p class="MsoNormal"><b><u><span style="font-family:"Trebuchet MS",sans-serif;color:black">UNCLASSIFIED</span></u></b><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Is it valid to use two parameters at the same time? “</span>--mgs –mdt” I dont think so.<o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><a name="_____replyseparator"></a><b><span lang="EN-US">From:</span></b><span lang="EN-US"> lustre-discuss <lustre-discuss-bounces@lists.lustre.org>
<b>On Behalf Of </b>Nick dan via lustre-discuss<br>
<b>Sent:</b> Tuesday, December 20, 2022 7:17 AM<br>
<b>To:</b> lustre-discuss@lists.lustre.org<br>
<b>Subject:</b> [lustre-discuss] Problem in confugration of MGS and MDT server in lustre.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi, <o:p></o:p></p>
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<p class="MsoNormal">Nick here Trying to configure Lustre MGS and MDT on Redhat 8.6.<o:p></o:p></p>
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<p class="MsoNormal">Referred from <a href="https://www.lustre.org/" target="_blank">
https://www.lustre.org/</a><o:p></o:p></p>
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<p class="MsoNormal">Successfully downloaded and installed the following packages by using yum install command:<o:p></o:p></p>
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<pre>yum install <a href="https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/kernel-4.18.0-372.9.1.el8_lustre.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/kernel-4.18.0-372.9.1.el8_lustre.x86_64.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/lustre-2.15.1-1.el8.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/lustre-2.15.1-1.el8.x86_64.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/lustre-ldiskfs-dkms-2.15.1-1.el8.noarch.rpm" target="_blank">https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/lustre-ldiskfs-dkms-2.15.1-1.el8.noarch.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/lustre-osd-ldiskfs-mount-2.15.1-1.el8.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/lustre/latest-release/el8.6/server/RPMS/x86_64/lustre-osd-ldiskfs-mount-2.15.1-1.el8.x86_64.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/e2fsprogs-1.46.2.wc5-0.el8.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/e2fsprogs-1.46.2.wc5-0.el8.x86_64.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/e2fsprogs-libs-1.46.2.wc5-0.el8.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/e2fsprogs-libs-1.46.2.wc5-0.el8.x86_64.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/libcom_err-1.46.2.wc5-0.el8.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/libcom_err-1.46.2.wc5-0.el8.x86_64.rpm</a><br>yum install <a href="https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/libss-1.46.2.wc5-0.el8.x86_64.rpm" target="_blank">https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64/libss-1.46.2.wc5-0.el8.x86_64.rpm</a><o:p></o:p></pre>
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<p class="MsoNormal">After this trying to do mkfs.lustre on my available NVMe-disk(nvme1n1)Mentioned in the below Fig
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">And did the mkfs.lusre on it and getting the error .<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<pre style="margin-bottom:12.0pt">mkfs.lustre --fsname=lustre --mgs --mdt --index=0 /dev/nvme1n1<br><br> Permanent disk data:<br>Target: lustre:MDT0000<br>Index: 0<br>Lustre FS: lustre<br>Mount type: ldiskfs<br>Flags: 0x65<br> (MDT MGS first_time update )<br>Persistent mount opts: user_xattr,errors=remount-ro<br>Parameters:<br><br>checking for existing Lustre data: not found<br>device size = 953869MB<br>formatting backing filesystem ldiskfs on /dev/nvme1n1<br> target name lustre:MDT0000<br> kilobytes 976762584<br> options -J size=4096 -I 1024 -i 2560 -q -O dirdata,uninit_bg,^extents,dir_nlink,quota,project,huge_file,ea_inode,large_dir,^fast_commit,flex_bg -E lazy_journal_init="0",lazy_itable_init="0" -F<br>mkfs_cmd = mke2fs -j -b 4096 -L lustre:MDT0000 -J size=4096 -I 1024 -i 2560 -q -O dirdata,uninit_bg,^extents,dir_nlink,quota,project,huge_file,ea_inode,large_dir,^fast_commit,flex_bg -E lazy_journal_init="0",lazy_itable_init="0" -F /dev/nvme1n1 976762584k<br>mkfs.lustre: Unable to mount /dev/nvme1n1: No such device<br>Is the ldiskfs module available?<br>mkfs.lustre FATAL: failed to write local files<br>mkfs.lustre: exiting with 19 (No such device)<o:p></o:p></pre>
<pre style="margin-bottom:12.0pt">Can you help where am I going wrong?<o:p></o:p></pre>
<pre>Regards,<o:p></o:p></pre>
<pre>Nick<o:p></o:p></pre>
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