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<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Hi Nick<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">></span>
<span style="font-size:11.0pt;mso-fareast-language:EN-US">Is the ldiskfs module available?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">It looks like lustre modules (ldiskfs exactly for mkfs.lustre) are not loaded.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Please, try load them first:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">#modprobe lustre<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">If all required packages are installed, this command loads the modules.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Artem Blagodarenko<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><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 Nick dan via lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Date: </b>Tuesday, 20 December 2022 at 04:19<br>
<b>To: </b>lustre-discuss@lists.lustre.org <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>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi, <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Nick here Trying to configure Lustre MGS and MDT on Redhat 8.6.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Referred from <a href="https://www.lustre.org/" target="_blank">
https://www.lustre.org/</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Successfully downloaded and installed the following packages by using yum install command:<o:p></o:p></span></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"><span style="font-size:11.0pt">After this trying to do mkfs.lustre on my available NVMe-disk(nvme1n1)Mentioned in the below Fig
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><img border="0" width="506" height="344" style="width:5.2708in;height:3.5833in" id="_x0000_i1025" src="cid:ii_lbq5tp7r0"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">And did the mkfs.lusre on it and getting the error .<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> <o:p></o:p></span></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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