<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi,<div class=""><br class=""></div><div class="">Below are the steps I executed in configuring MDS.</div><div class=""><br class=""></div><div class="">1. <span style="color: rgb(6, 8, 8); font-family: Courier; font-size: 8pt; font-weight: 700;" class="">mkfs.lustre --fsname lustre --mdt --mgs /dev/vg00/mdt</span></div>
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<div class="column"><p class=""><span style="font-size: 8.000000pt; font-family: 'Courier'; font-weight: 700; color: rgb(2.460608%, 3.152672%, 3.229536%)" class="">2. </span><span style="color: rgb(6, 8, 8); font-family: Courier; font-size: 8pt; font-weight: 700;" class="">mkdir /mdt</span></p>
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<div class="column"><p class=""><span style="font-size: 8.000000pt; font-family: 'Courier'; font-weight: 700; color: rgb(2.460608%, 3.152672%, 3.229536%)" class="">3. </span><span style="color: rgb(6, 8, 8); font-family: Courier; font-size: 8pt; font-weight: 700;" class="">mount -t lustre /dev/vg00/mdt /mdt</span></p>
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<div class="column"><p class=""><font color="#060808" class="">I see the below error after step 3:</font></p><div class=""><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">mount.lustre: mount /dev/mapper/vg00-mdt1 at /mdt failed: No such device</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Are the lustre modules loaded?</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Check /etc/modprobe.conf and /proc/filesystems</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">[root@amaranth3 lustre]# </span></div></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">I tried modprobe lustre and retried mounting but it resulted in the same error. Any help will be appreciated.</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">For your info, the lustre modules that I have installed are:</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">[root@amaranth3 lustre]# rpm -qa |grep lustre</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">lustre-osd-ldiskfs-mount-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">lustre-tests-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">lustre-modules-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">lustre-osd-ldiskfs-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">lustre-iokit-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">kernel-2.6.32-573.12.1.el6_lustre.x86_64</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="font-family: Menlo; font-size: 11px;" class="">lustre-2.8.0-2.6.32_573.12.1.el6_lustre.x86_64.x86_64</span></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">[root@amaranth3 lustre]# rpm -qa |grep e2fs</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">e2fsprogs-libs-1.42.13.wc5-7.el6.x86_64</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="font-family: Menlo; font-size: 11px;" class="">e2fsprogs-1.42.13.wc5-7.el6.x86_64</span></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">[root@amaranth3 lustre]# rpm -qa |grep libss</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="font-family: Menlo; font-size: 11px;" class="">libss-1.42.13.wc5-7.el6.x86_64</span></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">root@amaranth3 lustre]# rpm -qa |grep libcom</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">libcom_err-1.42.13.wc5-7.el6.x86_64</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">[root@amaranth3 lustre]# uname -a</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">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</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">[root@amaranth3 lustre]# </span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Thanks,</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Sangeetha </span></div>
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