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    <div class="moz-cite-prefix">Ran these commands.. corresponding
      messages (below) from console:<br>
      <br>
      [root@icon0]# lustre_rmmod<br>
      [root@icon0]# /sbin/service lustre start mgsmdt<br>
      Mounting lustre-mgs-mdt/mgsmdt0 on /mnt/lustre/local/mgsmdt<br>
      mount.lustre: mount lustre-mgs-mdt/mgsmdt0 at
      /mnt/lustre/local/mgsmdt failed: File exists<br>
      [root@icon0 obdclass]# lctl dl<br>
      [root@icon0 obdclass]# more /proc/fs/lustre/version <br>
      lustre: 2.5.57<br>
      kernel: patchless_client<br>
      build:  2.5.57-g3423b5b-CHANGED-2.6.32-431.11.2.el6.netboot<br>
      <br>
      <tt>----------------------------------------------------------------------------------------------------------------</tt><tt><br>
      </tt><tt>2014-04-22T11:17:01.632211-04:00 icon0.psc.edu kernel:
        LNet: Removed LNI 128.182.75.160@tcp10</tt><tt><br>
      </tt><tt>2014-04-22T11:17:03.638989-04:00 icon0.psc.edu kernel:
        LNet: Removed LNI 10.10.101.160@o2ib</tt><tt><br>
      </tt><tt><br>
      </tt><tt>2014-04-22T11:17:45.370586-04:00 icon0.psc.edu kernel:
        alg: No test for adler32 (adler32-zlib)</tt><tt><br>
      </tt><tt>2014-04-22T11:17:45.375377-04:00 icon0.psc.edu kernel:
        alg: No test for crc32 (crc32-table)</tt><tt><br>
      </tt><tt>      </tt><tt><br>
      </tt><tt>2014-04-22T11:17:53.537558-04:00 icon0.psc.edu kernel:
        Lustre: Lustre: Build Version:
        2.5.57-g3423b5b-CHANGED-2.6.32-431.11.2.el6.netboot</tt><tt><br>
      </tt><tt>2014-04-22T11:17:53.780761-04:00 icon0.psc.edu kernel:
        LNet: Added LNI 10.10.101.160@o2ib [8/256/0/180]</tt><tt><br>
      </tt><tt>2014-04-22T11:17:53.799193-04:00 icon0.psc.edu kernel:
        LNet: Added LNI 128.182.75.160@tcp10 [8/256/0/180]</tt><tt><br>
      </tt><tt>2014-04-22T11:17:53.803483-04:00 icon0.psc.edu kernel:
        LNet: Accept secure, port 988</tt><tt><br>
      </tt><tt>             </tt><tt><br>
      </tt><tt>2014-04-22T11:17:56.016370-04:00 icon0.psc.edu kernel:
        LustreError: 11-0: iconfs-MDT0000-lwp-MDT0000: Communicating
        with 0@lo, operation mds_connect failed with -11.</tt><tt><br>
      </tt><tt>LustreError: 9303:0:(mdd_device.c:1050:mdd_prepare())
        iconfs-MDD0000: failed to initialize lfsck: rc = -17</tt><tt><br>
      </tt><tt>LustreError:
        9303:0:(obd_mount_server.c:1776:server_fill_super()) Unable to
        start targets: -17</tt><tt><br>
      </tt><tt>2014-04-22T11:17:58.112621-04:00 icon0.psc.edu kernel:
        LustreError: 9303:0:(mdd_device.c:1050:mdd_prepare())
        iconfs-MDD0000: failed to initialize lfsck: rc = -17</tt><tt><br>
      </tt><tt>2014-04-22T11:17:58.112650-04:00 icon0.psc.edu kernel:
        LustreError:
        9303:0:(obd_mount_server.c:1776:server_fill_super()) Unable to
        start targets: -17</tt><tt><br>
      </tt><tt>2014-04-22T11:17:58.125683-04:00 icon0.psc.edu kernel:
        Lustre: Failing over iconfs-MDT0000</tt><tt><br>
      </tt><tt><br>
      </tt><tt>2014-04-22T11:18:04.453442-04:00 icon0.psc.edu kernel:
        Lustre: 9303:0:(client.c:1912:ptlrpc_expire_one_request()) @@@
        Request sent has timed out for slow reply: [sent 1398179878/real
        1398179878]  req@ffff880307c08800 x1466097858510988/t0(0)
        o251->MGC10.10.101.160@o2ib@0@lo:26/25 lens 224/224 e 0 to 1
        dl 1398179884 ref 2 fl Rpc:XN/0/ffffffff rc 0/-1</tt><tt><br>
      </tt><tt>                              </tt><tt><br>
      </tt><tt>2014-04-22T11:18:04.715996-04:00 icon0.psc.edu kernel:
        Lustre: server umount iconfs-MDT0000 complete</tt><tt><br>
      </tt><tt>2014-04-22T11:18:04.716024-04:00 icon0.psc.edu kernel:
        LustreError: 9303:0:(obd_mount.c:1338:lustre_fill_super())
        Unable to mount  (-17)</tt><br>
      <br>
      On 04/22/2014 11:00 AM, Parinay Kondekar wrote:<br>
    </div>
    <blockquote
cite="mid:CAB+_9GqaR5g5ozWZrKM-H0U3HYtz0fSfNT181fdNqxMpFaaprw@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div><span
            style="font-family:arial,sans-serif;font-size:12.727272033691406px">LustreError:
            3537:0:(obd_mount_server.c:</span><span
            style="font-family:arial,sans-serif;font-size:12.727272033691406px">177</span><span
style="font-family:arial,sans-serif;font-size:12.727272033691406px">6:server_fill_super())
            Unable to start targets: -17 2014-04-21T13:05Lustre: Failing
            over iconfs-MDT0000 :09.821666-04:00 </span><a
            moz-do-not-send="true" href="http://icon0.psc.edu/"
            target="_blank"
            style="font-family:arial,sans-serif;font-size:12.727272033691406px">icon0.psc.edu</a><span
style="font-family:arial,sans-serif;font-size:12.727272033691406px"> kernel:
            LustreError: 3537:0:(mdd_device.c:1050:mdd_</span><span
            style="font-family:arial,sans-serif;font-size:12.727272033691406px">prepare())
            iconfs-MDD0000: failed to initialize lfsck: rc = -17</span><br
style="font-family:arial,sans-serif;font-size:12.727272033691406px">
          <br>
        </div>
        <div> #define>EEXIST> >       17>     /* File exists
          */<br>
        </div>
        <div><br>
        </div>
        <div><span
            style="font-family:arial,sans-serif;font-size:12.727272033691406px">Issue
            is present with 2.4 client.</span></div>
        <div><span
            style="font-family:arial,sans-serif;font-size:12.727272033691406px"><br>
          </span></div>
        - Try `lustre_rmmod` and mount again.
        <div>- lctl dl output</div>
        <div>- lustre version</div>
        <div><br>
        </div>
        <div>HTH</div>
      </div>
      <div class="gmail_extra"><br>
      </div>
    </blockquote>
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