Hi, Below are the steps I executed in configuring MDS.
1. mkfs.lustre --fsname lustre --mdt --mgs /dev/vg00/mdt 2. mkdir /mdt 3. mount -t lustre /dev/vg00/mdt /mdt I see the below error after step 3: mount.lustre: mount /dev/mapper/vg00-mdt1 at /mdt failed: No such device Are the lustre modules loaded? Check /etc/modprobe.conf and /proc/filesystems [root@amaranth3 lustre]# I tried modprobe lustre and retried mounting but it resulted in the same error. Any help will be appreciated. For your info, the lustre modules that I have installed are: [root@amaranth3 lustre]# rpm -qa |grep lustre lustre-osd-ldiskfs-mount-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64 lustre-tests-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64 lustre-modules-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64 lustre-osd-ldiskfs-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64 lustre-iokit-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64 kernel-2.6.32-573.12.1.el6_lustre.x86_64 lustre-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64 [root@amaranth3 lustre]# rpm -qa |grep e2fs e2fsprogs-libs-1.42.13.wc5-7.el6.x86_64 e2fsprogs-1.42.13.wc5-7.el6.x86_64 [root@amaranth3 lustre]# rpm -qa |grep libss libss-1.42.13.wc5-7.el6.x86_64 root@amaranth3 lustre]# rpm -qa |grep libcom libcom_err-1.42.13.wc5-7.el6.x86_64 [root@amaranth3 lustre]# uname -a Linux amaranth3 2.6.32-573.12.1.el6_lustre.x86_64 #1 SMP Tue Feb 23 22:41:09 PST 2016 x86_64 x86_64 x86_64 GNU/Linux [root@amaranth3 lustre]# Thanks, Sangeetha
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