<div dir="ltr"><div>Anjana,</div><div><br></div>Does this look similar - <a href="https://jira.hpdd.intel.com/browse/LU-4634">https://jira.hpdd.intel.com/browse/LU-4634</a> ?<div><br></div><div>including hpdd-discuss.</div>
<div><br></div><div>HTH<br><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Anjana Kar</b> <span dir="ltr"><<a href="mailto:kar@psc.edu">kar@psc.edu</a>></span><br>
Date: 24 April 2014 20:16<br>Subject: Re: [Lustre-discuss] MDT fails to mount after lustre upgrade<br>To: <a href="mailto:lustre-discuss@lists.lustre.org">lustre-discuss@lists.lustre.org</a><br><br><br>Would it make sense to run<br>
"tunefs.lustre --mgs --writeconf --mgs --mdt /dev/sda /dev/sdb" ?<br>
<br>
The original mkfs command used to create the MDT was<br>
mkfs.lustre --reformat --fsname=iconfs --mgs --mdt --backfstype=zfs --device-size 131072 \<br>
--index=0 lustre-mgs-mdt/mgsmdt0 mirror /dev/sda /dev/sdb<br>
<br>
Not sure if both device names should be included or the zpool name.<br>
<br>
The latest 2.5.x version also fails to mount MDT with similar messages, though<br>
zpool seems intact... is there anyway to get MDT to mount?<br>
<br>
[root@icon0 kar]# more /proc/fs/lustre/version<br>
lustre: 2.5.58<br>
kernel: patchless_client<br>
build: 2.5.58-g5565877-PRISTINE-2.6.<u></u>32-431.11.2.el6.netboot<br>
<br>
[root@icon0 kar]# /sbin/service lustre start mgsmdt<div class=""><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>
<br></div>
[root@icon0 kar]# zpool list<br>
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT<br>
lustre-mgs-mdt 74.5G 47.2G 27.3G 63% 1.00x ONLINE -<br>
<br>
Corresponding console messages:<br>
2014-04-24T10:36:53.736967-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: Lustre: Lustre: Build Version: 2.5.58-g5565877-PRISTINE-2.6.<u></u>32-431.11.2.el6.netboot<br>
2014-04-24T10:36:53.986362-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LNet: Added LNI 10.10.101.160@o2ib [8/256/0/180]<br>
2014-04-24T10:36:54.005177-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LNet: Added LNI 128.182.75.160@tcp10 [8/256/0/180]<br>
2014-04-24T10:36:54.009556-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LNet: Accept secure, port 988<br>
2014-04-24T10:36:57.428805-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LustreError: 11-0: iconfs-MDT0000-lwp-MDT0000: Communicating with 0@lo, operation mds_connect failed with -11.<br>
2014-04-24T10:36:58.600958-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LustreError: 11888:0:(mdd_device.c:1050:<u></u>mdd_prepare()) iconfs-MDD0000: failed to initialize lfsck: rc = -17<br>
2014-04-24T10:36:58.600978-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LustreError: 11888:0:(obd_mount_server.c:<u></u>1776:server_fill_super()) Unable to start targets: -17<br>
2014-04-24T10:36:58.614082-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: Lustre: Failing over iconfs-MDT0000<br>
2014-04-24T10:37:04.885917-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: Lustre: 11888:0:(client.c:1912:ptlrpc_<u></u>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1398350218/real 1398350218] req@ffff8802fca1a000 x1466276472946828/t0(0) o251->MGC10.10.101.160@o2ib@0@<u></u>lo:26/25 lens 224/224 e 0 to 1 dl 1398350224 ref 2 fl Rpc:XN/0/ffffffff rc 0/-1<br>
2014-04-24T10:37:05.418516-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: Lustre: server umount iconfs-MDT0000 complete<br>
2014-04-24T10:37:05.418535-04:<u></u>00 <a href="http://icon0.psc.edu" target="_blank">icon0.psc.edu</a> kernel: LustreError: 11888:0:(obd_mount.c:1338:<u></u>lustre_fill_super()) Unable to mount (-17)<br>
<br>
TIA,<div class="im"><br>
-Anjana Kar<br>
Pittsburgh Supercomputing Center<br>
<a href="mailto:kar@psc.edu" target="_blank">kar@psc.edu</a><br></div><div class=""><div class="h5">
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