<div dir="ltr"><div>Hi, <br></div><div>Nick here Trying to configure Lustre MGS and MDT on Redhat 8.6.</div><div>Referred from  <a href="https://www.lustre.org/" target="_blank">https://www.lustre.org/</a></div><div>Successfully downloaded and installed the following packages by using yum install command:</div><div><div><pre dir="auto">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></pre></div><div><div>After this trying to do mkfs.lustre on my available NVMe-disk(nvme1n1)Mentioned in the below Fig <br></div><div><img src="cid:ii_lbq5tp7r0" alt="image.png" class="gmail-CToWUd gmail-a6T" tabindex="0" width="506" height="344"></div></div></div><div><br></div><div>And did the mkfs.lusre on it and getting the error .</div><div> <br><pre dir="auto">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 <span id="m_5640527433027805488m_-886364458347569182gmail-MCPM_1671173186682">    976762584</span><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)<br><br></pre><pre>Can you help where am I going wrong?<br><br></pre><pre>Regards,<br></pre><pre>Nick<br></pre></div></div>