<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I just recovered an OST from a disk crash with e2fsck.<div>however when i try to remount as a lustre filesystem disk I get the following:</div><div><br></div><div><div>[root@ost3 ~]# e2fsck -p -j /dev/etherd/e9.24p3 /dev/md142</div><div>lustre2-OST0009: Superblock hint for external superblock should be 0x109893. FIXED.</div><div>lustre2-OST0009: clean, 948931/28615936 files, 6134439/3662831360 blocks</div><div>[root@ost3 ~]# mount -t lustre /dev/md142 /mnt/ost142</div><div>mount.lustre: mount /dev/md142 at /mnt/ost142 failed: No such file or directory</div><div>Is the MGS specification correct?</div><div>Is the filesystem name correct?</div><div>If upgrading, is the copied client log valid? (see upgrade docs)</div></div><div><br></div><div>I presume I need to re-add something back here but what ?</div><div><br></div><div>dumpe2fs reports the following:</div><div><br></div><div>---</div><div><div>dumpe2fs 1.41.90.wc4 (01-Sep-2011)</div><div>Filesystem volume name: lustre2-OST0009</div><div>Last mounted on: /</div><div>Filesystem UUID: 2df99747-3c27-4795-abf5-c24a212edde3</div><div>Filesystem magic number: 0xEF53</div><div>Filesystem revision #: 1 (dynamic)</div><div>Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink</div><div>Filesystem flags: signed_directory_hash </div><div>Default mount options: user_xattr acl</div><div>Filesystem state: clean</div><div>Errors behavior: Continue</div><div>Filesystem OS type: Linux</div><div>Inode count: 28615936</div><div>Block count: 3662831360</div><div>Reserved block count: 183141568</div><div>Free blocks: 3656696921</div><div>Free inodes: 27667005</div><div>First block: 0</div><div>Block size: 4096</div><div>Fragment size: 4096</div><div>Reserved GDT blocks: 149</div><div>Blocks per group: 32768</div><div>Fragments per group: 32768</div><div>Inodes per group: 256</div><div>Inode blocks per group: 16</div><div>RAID stride: 64</div><div>RAID stripe width: 320</div><div>Flex block group size: 256</div><div>Filesystem created: Wed Mar 28 11:47:49 2012</div><div>Last mount time: Fri Jul 6 10:54:07 2012</div><div>Last write time: Fri Jul 6 10:54:07 2012</div><div>Mount count: 1</div><div>Maximum mount count: 20</div><div>Last checked: Thu Jul 5 22:12:16 2012</div><div>Check interval: 0 (<none>)</div><div>Lifetime writes: 63 GB</div><div>Reserved blocks uid: 0 (user root)</div><div>Reserved blocks gid: 0 (group root)</div><div>First inode: 11</div><div>Inode size:<span class="Apple-tab-span" style="white-space:pre"> </span> 256</div><div>Required extra isize: 28</div><div>Desired extra isize: 28</div><div>Journal UUID: de0081bb-52a1-4970-b66c-08c13cbba8c7</div><div>Journal device:<span class="Apple-tab-span" style="white-space:pre"> </span> 0x109893</div><div>Default directory hash: half_md4</div><div>Directory Hash Seed: e34cbe13-406b-49e2-995d-52ff289120c8</div><div>Journal backup: inode blocks</div></div><div><br></div><div><br></div><div><br><div apple-content-edited="true">
<div style="font-size: 12px; ">Professor Samuel Aparicio BM BCh PhD FRCPath</div><div style="font-size: 12px; ">Nan and Lorraine Robertson Chair UBC/BC Cancer Agency</div><div style="font-size: 12px; ">675 West 10th, Vancouver V5Z 1L3, Canada.</div><div style="font-size: 12px; ">office: +1 604 675 8200 lab website <a href="http://molonc.bccrc.ca/">http://molonc.bccrc.ca</a></div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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