<div dir="ltr"><div><div>Hi all,<br><br></div>Our clients-failed-to-mount/lctl ping horror, turned out to be a failing subnet manager issue. We did no see an issue runnning 'sminfo' but on the IB switch we could see that the subnetmanager was unstable. This caused mayhem on the IB/Lustre setup.<br><br></div>Thanks everybody for their help/advice/hints. Good to see how this active community works! <br><div><div><div><br><br><br></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 25, 2017 at 8:17 PM, E.S. Rosenberg <span dir="ltr"><<a href="mailto:esr+lustre@mail.hebrew.edu" target="_blank">esr+lustre@mail.hebrew.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote"><span class="">On Tue, Apr 25, 2017 at 7:41 PM, Oucharek, Doug S <span dir="ltr"><<a href="mailto:doug.s.oucharek@intel.com" target="_blank">doug.s.oucharek@intel.com</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote">That specific message happens when the “magic” u32 field at the start of a message does not match what we are expecting. We do check if the message was transmitted as a different endian from us so when you see this error, we assume that message has been corrupted or the sender is using an invalid magic value. I don’t believe this value has changed in the history of the LND so this is more likely corruption of some sort.<br></blockquote></span><div><br>OT: this information should probably be added to LU-2977 which specifically includes the question: What does "consumer defined fatal error" mean and why is this connection rejected?<br><br></div><div><div class="h5"><div><br> </div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote">
<span class="m_5032209958362174060gmail-HOEnZb"><font color="#888888"><br>
Doug<br>
</font></span><div class="m_5032209958362174060gmail-HOEnZb"><div class="m_5032209958362174060gmail-h5"><br>
> On Apr 25, 2017, at 2:29 AM, Dilger, Andreas <<a href="mailto:andreas.dilger@intel.com" target="_blank">andreas.dilger@intel.com</a>> wrote:<br>
><br>
> I'm not an LNet expert, but I think the critical issue to focus on is:<br>
><br>
> Lustre: Lustre: Build Version: 2.5.3-RC1--PRISTINE-2.6.32-573<wbr>.el6.x86_64<br>
> LNet: Added LNI 172.23.54.51@o2ib [8/256/0/180]<br>
> LNetError: 2878:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) 172.23.55.211@o2ib rejected: consumer defined fatal error<br>
><br>
> This means that the LND didn't connect at startup time, but I don't know what the cause is.<br>
> The error that generates this message is IB_CM_REJ_CONSUMER_DEFINED, but I don't know enough about IB to tell you what that means. Some of the later code is checking for mismatched Lustre versions, but it doesn't even get that far.<br>
><br>
> Cheers, Andreas<br>
><br>
>> On Apr 25, 2017, at 02:21, Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>><br>
>> Hi Raj,<br>
>><br>
>> [root@pg-gpu01 ~]# lustre_rmmod<br>
>><br>
>> [root@pg-gpu01 ~]# modprobe -v lustre<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>net/lustre/libcfs.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/lvfs.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>net/lustre/lnet.ko networks=o2ib(ib0)<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/obdclass.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/ptlrpc.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/fid.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/mdc.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/osc.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/lov.ko<br>
>> insmod /lib/modules/2.6.32-642.6.2.el<wbr>6.x86_64/weak-updates/kernel/<wbr>fs/lustre/lustre.ko<br>
>><br>
>> dmesg:<br>
>><br>
>> LNet: HW CPU cores: 24, npartitions: 4<br>
>> alg: No test for crc32 (crc32-table)<br>
>> alg: No test for adler32 (adler32-zlib)<br>
>> alg: No test for crc32 (crc32-pclmul)<br>
>> Lustre: Lustre: Build Version: 2.5.3-RC1--PRISTINE-2.6.32-573<wbr>.el6.x86_64<br>
>> LNet: Added LNI 172.23.54.51@o2ib [8/256/0/180]<br>
>><br>
>> But no luck,<br>
>><br>
>> [root@pg-gpu01 ~]# lctl ping 172.23.55.211@o2ib<br>
>> failed to ping 172.23.55.211@o2ib: Input/output error<br>
>><br>
>> [root@pg-gpu01 ~]# mount /home<br>
>> mount.lustre: mount 172.23.55.211@o2ib:172.23.55.2<wbr>12@o2ib:/pghome01 at /home failed: Input/output error<br>
>> Is the MGS running?<br>
>><br>
>><br>
>><br>
>><br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 7:53 PM, Raj <<a href="mailto:rajgautam@gmail.com" target="_blank">rajgautam@gmail.com</a>> wrote:<br>
>> Yes, this is strange. Normally, I have seen that credits mismatch results this scenario but it doesn't look like this is the case.<br>
>><br>
>> You wouldn't want to put mgs into capture debug messages as there will be a lot of data.<br>
>><br>
>> I guess you already tried removing the lustre drivers and adding it again ?<br>
>> lustre_rmmod<br>
>> modprobe -v lustre<br>
>><br>
>> And check dmesg for any errors...<br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 12:43 PM Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>> Hi Raj,<br>
>><br>
>> When i do a lctl ping on a MGS server i do not see any logs at all. Also not when i do a sucessfull ping from a working node. Is there a way to verbose the Lustre logging to see more detail on the LNET level?<br>
>><br>
>> It is very strange that a rebooted node is able to lctl ping compute nodes, but fails to lctl ping metadata and storage nodes.<br>
>><br>
>><br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 7:35 PM, Raj <<a href="mailto:rajgautam@gmail.com" target="_blank">rajgautam@gmail.com</a>> wrote:<br>
>> Ger,<br>
>> It looks like default configuration of lustre.<br>
>><br>
>> Do you see any error message on the MGS side while you are doing lctl ping from the rebooted clients?<br>
>> On Mon, Apr 24, 2017 at 12:27 PM Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>> Hi Eli,<br>
>><br>
>> Nothing can be mounted on the Lustre filesystems so the output is:<br>
>><br>
>> [root@pg-gpu01 ~]# lfs df /home/ger/<br>
>> [root@pg-gpu01 ~]#<br>
>><br>
>> Empty..<br>
>><br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 7:24 PM, E.S. Rosenberg <<a href="mailto:esr@cs.huji.ac.il" target="_blank">esr@cs.huji.ac.il</a>> wrote:<br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 8:19 PM, Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>> Hallo Eli,<br>
>><br>
>> Logfile/syslog on the client-side:<br>
>><br>
>> Lustre: Lustre: Build Version: 2.5.3-RC1--PRISTINE-2.6.32-573<wbr>.el6.x86_64<br>
>> LNet: Added LNI 172.23.54.51@o2ib [8/256/0/180]<br>
>> LNetError: 2878:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) 172.23.55.211@o2ib rejected: consumer defined fatal error<br>
>><br>
>> lctl df /path/to/some/file<br>
>><br>
>> gives nothing useful? (the second one will dump *a lot*)<br>
>><br>
>><br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 7:16 PM, E.S. Rosenberg <<a href="mailto:esr%2Blustre@mail.hebrew.edu" target="_blank">esr+lustre@mail.hebrew.edu</a>> wrote:<br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 8:13 PM, Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>> Hi Raj (and others),<br>
>><br>
>> In which file should i state the credits/peer_credits stuff?<br>
>><br>
>> Perhaps relevant config-files:<br>
>><br>
>> [root@pg-gpu01 ~]# cd /etc/modprobe.d/<br>
>><br>
>> [root@pg-gpu01 modprobe.d]# ls<br>
>> anaconda.conf blacklist-kvm.conf dist-alsa.conf dist-oss.conf ib_ipoib.conf lustre.conf openfwwf.conf<br>
>> blacklist.conf blacklist-nouveau.conf dist.conf freeipmi-modalias.conf ib_sdp.conf mlnx.conf truescale.conf<br>
>><br>
>> [root@pg-gpu01 modprobe.d]# cat ./ib_ipoib.conf<br>
>> alias netdev-ib* ib_ipoib<br>
>><br>
>> [root@pg-gpu01 modprobe.d]# cat ./mlnx.conf<br>
>> # Module parameters for MLNX_OFED kernel modules<br>
>><br>
>> [root@pg-gpu01 modprobe.d]# cat ./lustre.conf<br>
>> options lnet networks=o2ib(ib0)<br>
>><br>
>> Are there more Lustre/LNET options that could help in this situation?<br>
>><br>
>> What about the logfiles?<br>
>> Any error messages in syslog? lctl debug options?<br>
>> Veel geluk,<br>
>> Eli<br>
>><br>
>><br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 7:02 PM, Raj <<a href="mailto:rajgautam@gmail.com" target="_blank">rajgautam@gmail.com</a>> wrote:<br>
>> May be worth checking your lnet credits and peer_credits in /etc/modprobe.d ?<br>
>> You can compare between working hosts and non working hosts.<br>
>> Thanks<br>
>> _Raj<br>
>><br>
>> On Mon, Apr 24, 2017 at 10:10 AM Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>> Hi Rick,<br>
>><br>
>> Even without iptables rules and loading the correct modules afterwards, we get the same results:<br>
>><br>
>> [root@pg-gpu01 sysconfig]# iptables --list<br>
>> Chain INPUT (policy ACCEPT)<br>
>> target prot opt source destination<br>
>><br>
>> Chain FORWARD (policy ACCEPT)<br>
>> target prot opt source destination<br>
>><br>
>> Chain OUTPUT (policy ACCEPT)<br>
>> target prot opt source destination<br>
>><br>
>> Chain LOGDROP (0 references)<br>
>> target prot opt source destination<br>
>> LOG all -- anywhere anywhere LOG level warning<br>
>> DROP all -- anywhere anywhere<br>
>><br>
>> [root@pg-gpu01 sysconfig]# modprobe lnet<br>
>><br>
>> [root@pg-gpu01 sysconfig]# modprobe lustre<br>
>><br>
>> [root@pg-gpu01 sysconfig]# lctl ping 172.23.55.211@o2ib<br>
>><br>
>> failed to ping 172.23.55.211@o2ib: Input/output error<br>
>><br>
>><br>
>><br>
>><br>
>><br>
>><br>
>><br>
>> On Mon, Apr 24, 2017 at 4:59 PM, Mohr Jr, Richard Frank (Rick Mohr) <<a href="mailto:rmohr@utk.edu" target="_blank">rmohr@utk.edu</a>> wrote:<br>
>> This might be a long shot, but have you checked for possible firewall rules that might be causing the issue? I’m wondering if there is a chance that some rules were added after the nodes were up to allow Lustre access, and when a node got rebooted, it lost the rules.<br>
>><br>
>> --<br>
>> Rick Mohr<br>
>> Senior HPC System Administrator<br>
>> National Institute for Computational Sciences<br>
>> <a rel="noreferrer" href="http://www.nics.tennessee.edu" target="_blank">http://www.nics.tennessee.edu</a><br>
>><br>
>><br>
>>> On Apr 24, 2017, at 10:19 AM, Strikwerda, Ger <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>>><br>
>>> Hi Russell,<br>
>>><br>
>>> Thanks for the IB subnet clues:<br>
>>><br>
>>> [root@pg-gpu01 ~]# ibv_devinfo<br>
>>> hca_id: mlx4_0<br>
>>> transport: InfiniBand (0)<br>
>>> fw_ver: 2.32.5100<br>
>>> node_guid: f452:1403:00f5:4620<br>
>>> sys_image_guid: f452:1403:00f5:4623<br>
>>> vendor_id: 0x02c9<br>
>>> vendor_part_id: 4099<br>
>>> hw_ver: 0x1<br>
>>> board_id: MT_1100120019<br>
>>> phys_port_cnt: 1<br>
>>> port: 1<br>
>>> state: PORT_ACTIVE (4)<br>
>>> max_mtu: 4096 (5)<br>
>>> active_mtu: 4096 (5)<br>
>>> sm_lid: 1<br>
>>> port_lid: 185<br>
>>> port_lmc: 0x00<br>
>>> link_layer: InfiniBand<br>
>>><br>
>>> [root@pg-gpu01 ~]# sminfo<br>
>>> sminfo: sm lid 1 sm guid 0xf452140300f62320, activity count 80878098 priority 0 state 3 SMINFO_MASTER<br>
>>><br>
>>> Looks like the rebooted node is able to connect/contact IB/IB subnetmanager<br>
>>><br>
>>><br>
>>><br>
>>><br>
>>> On Mon, Apr 24, 2017 at 4:14 PM, Russell Dekema <<a href="mailto:dekemar@umich.edu" target="_blank">dekemar@umich.edu</a>> wrote:<br>
>>> At first glance, this sounds like your Infiniband subnet manager may<br>
>>> be down or malfunctioning. In this case, nodes which were already up<br>
>>> when the subnet manager was working will continue to be able to<br>
>>> communicate over IB, but nodes which reboot after the SM goes down<br>
>>> will not.<br>
>>><br>
>>> You can test this theory by running the 'ibv_devinfo' command on one<br>
>>> of your rebooted nodes. If the relevant IB port is in state PORT_INIT,<br>
>>> this confirms there is a problem with your subnet manager.<br>
>>><br>
>>> Sincerely,<br>
>>> Rusty Dekema<br>
>>><br>
>>><br>
>>><br>
>>><br>
>>> On Mon, Apr 24, 2017 at 9:57 AM, Strikwerda, Ger<br>
>>> <<a href="mailto:g.j.c.strikwerda@rug.nl" target="_blank">g.j.c.strikwerda@rug.nl</a>> wrote:<br>
>>>> Hi everybody,<br>
>>>><br>
>>>> Here at the university of Groningen we are now experiencing a strange Lustre<br>
>>>> error. If a client reboots, it fails to mount the Lustre storage. The client<br>
>>>> is not able to reach the MSG service. The storage and nodes are<br>
>>>> communicating over IB and unitil now without any problems. It looks like an<br>
>>>> issue inside LNET. Clients cannot LNET ping/connect the metadata and or<br>
>>>> storage. But the clients are able to LNET ping each other. Clients which not<br>
>>>> have been rebooted, are working fine and have their mounts on our Lustre<br>
>>>> filesystem.<br>
>>>><br>
>>>> Lustre client log:<br>
>>>><br>
>>>> Lustre: Lustre: Build Version: 2.5.3-RC1--PRISTINE-2.6.32-573<wbr>.el6.x86_64<br>
>>>> LNet: Added LNI 172.23.54.51@o2ib [8/256/0/180]<br>
>>>><br>
>>>> LustreError: 15c-8: MGC172.23.55.211@o2ib: The configuration from log<br>
>>>> 'pgdata01-client' failed (-5). This may be the result of communication<br>
>>>> errors between this node and the MGS, a bad configuration, or other errors.<br>
>>>> See the syslog for more information.<br>
>>>> LustreError: 3812:0:(llite_lib.c:1046:ll_fi<wbr>ll_super()) Unable to process<br>
>>>> log: -5<br>
>>>> Lustre: Unmounted pgdata01-client<br>
>>>> LustreError: 3812:0:(obd_mount.c:1325:lustr<wbr>e_fill_super()) Unable to mount<br>
>>>> (-5)<br>
>>>> LNetError: 2882:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) 172.23.55.212@o2ib<br>
>>>> rejected: consumer defined fatal error<br>
>>>> LNetError: 2882:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) Skipped 1 previous<br>
>>>> similar message<br>
>>>> Lustre: 3765:0:(client.c:1918:ptlrpc_e<wbr>xpire_one_request()) @@@ Request sent<br>
>>>> has failed due to network error: [sent 1492789626/real 1492789626]<br>
>>>> req@ffff88105af2cc00 x1565303228072004/t0(0)<br>
>>>> o250->MGC172.23.55.211@o2ib@17<wbr>2.23.55.212@o2ib:26/25 lens 400/544 e 0 to 1<br>
>>>> dl 1492789631 ref 1 fl Rpc:XN/0/ffffffff rc 0/-1<br>
>>>> Lustre: 3765:0:(client.c:1918:ptlrpc_e<wbr>xpire_one_request()) Skipped 1<br>
>>>> previous similar message<br>
>>>> LustreError: 3826:0:(client.c:1083:ptlrpc_i<wbr>mport_delay_req()) @@@ send limit<br>
>>>> expired req@ffff882041ffc000 x1565303228071996/t0(0)<br>
>>>> o101->MGC172.23.55.211@o2ib@17<wbr>2.23.55.211@o2ib:26/25 lens 328/344 e 0 to 0<br>
>>>> dl 0 ref 2 fl Rpc:W/0/ffffffff rc 0/-1<br>
>>>> LustreError: 3826:0:(client.c:1083:ptlrpc_i<wbr>mport_delay_req()) Skipped 2<br>
>>>> previous similar messages<br>
>>>> LustreError: 15c-8: MGC172.23.55.211@o2ib: The configuration from log<br>
>>>> 'pghome01-client' failed (-5). This may be the result of communication<br>
>>>> errors between this node and the MGS, a bad configuration, or other errors.<br>
>>>> See the syslog for more information.<br>
>>>> LustreError: 3826:0:(llite_lib.c:1046:ll_fi<wbr>ll_super()) Unable to process<br>
>>>> log: -5<br>
>>>><br>
>>>> LNetError: 2882:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) 172.23.55.212@o2ib<br>
>>>> rejected: consumer defined fatal error<br>
>>>> LNetError: 2882:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) Skipped 1 previous<br>
>>>> similar message<br>
>>>> LNet: 3755:0:(o2iblnd_cb.c:475:kibln<wbr>d_rx_complete()) Rx from<br>
>>>> 172.23.55.211@o2ib failed: 5<br>
>>>> LNetError: 2882:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) 172.23.55.211@o2ib<br>
>>>> rejected: consumer defined fatal error<br>
>>>> LNetError: 2882:0:(o2iblnd_cb.c:2587:kibl<wbr>nd_rejected()) Skipped 1 previous<br>
>>>> similar message<br>
>>>> LNet: 2882:0:(o2iblnd_cb.c:2072:kibl<wbr>nd_peer_connect_failed()) Deleting<br>
>>>> messages for 172.23.55.211@o2ib: connection failed<br>
>>>> LNet: 2882:0:(o2iblnd_cb.c:2072:kibl<wbr>nd_peer_connect_failed()) Deleting<br>
>>>> messages for 172.23.55.212@o2ib: connection failed<br>
>>>> LNet: 3754:0:(o2iblnd_cb.c:475:kibln<wbr>d_rx_complete()) Rx from<br>
>>>> 172.23.55.212@o2ib failed: 5<br>
>>>> LNet: 3754:0:(o2iblnd_cb.c:475:kibln<wbr>d_rx_complete()) Skipped 17 previous<br>
>>>> similar messages<br>
>>>> LNet: 2882:0:(o2iblnd_cb.c:2072:kibl<wbr>nd_peer_connect_failed()) Deleting<br>
>>>> messages for 172.23.55.211@o2ib: connection failed<br>
>>>> LNet: 3754:0:(o2iblnd_cb.c:475:kibln<wbr>d_rx_complete()) Rx from<br>
>>>> 172.23.55.212@o2ib failed: 5<br>
>>>> LNet: 2882:0:(o2iblnd_cb.c:2072:kibl<wbr>nd_peer_connect_failed()) Deleting<br>
>>>> messages for 172.23.55.212@o2ib: connection failed<br>
>>>><br>
>>>> LNET ping of a metadata-node:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# lctl ping 172.23.55.211@o2ib<br>
>>>> failed to ping 172.23.55.211@o2ib: Input/output error<br>
>>>><br>
>>>> LNET ping of the number 2 metadata-node:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# lctl ping 172.23.55.212@o2ib<br>
>>>> failed to ping 172.23.55.212@o2ib: Input/output error<br>
>>>><br>
>>>> LNET ping of a random compute-node:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# lctl ping 172.23.52.5@o2ib<br>
>>>> 12345-0@lo<br>
>>>> 12345-172.23.52.5@o2ib<br>
>>>><br>
>>>> LNET to OST01:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# lctl ping 172.23.55.201@o2ib<br>
>>>> failed to ping 172.23.55.201@o2ib: Input/output error<br>
>>>><br>
>>>> LNET to OST02:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# lctl ping 172.23.55.202@o2ib<br>
>>>> failed to ping 172.23.55.202@o2ib: Input/output error<br>
>>>><br>
>>>> 'normal' pings (on ip level) works fine:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# ping 172.23.55.201<br>
>>>> PING 172.23.55.201 (172.23.55.201) 56(84) bytes of data.<br>
>>>> 64 bytes from <a rel="noreferrer" href="http://172.23.55.201" target="_blank">172.23.55.201</a>: icmp_seq=1 ttl=64 time=0.741 ms<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# ping 172.23.55.202<br>
>>>> PING 172.23.55.202 (172.23.55.202) 56(84) bytes of data.<br>
>>>> 64 bytes from <a rel="noreferrer" href="http://172.23.55.202" target="_blank">172.23.55.202</a>: icmp_seq=1 ttl=64 time=0.704 ms<br>
>>>><br>
>>>> lctl on a rebooted node:<br>
>>>><br>
>>>> [root@pg-gpu01 ~]# lctl dl<br>
>>>><br>
>>>> lctl on a not rebooted node:<br>
>>>><br>
>>>> [root@pg-node005 ~]# lctl dl<br>
>>>> 0 UP mgc MGC172.23.55.211@o2ib 94bd1c8a-512f-b920-9a4e-a6aced<wbr>3d386d 5<br>
>>>> 1 UP lov pgtemp01-clilov-ffff88206906d4<wbr>00<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 4<br>
>>>> 2 UP lmv pgtemp01-clilmv-ffff88206906d4<wbr>00<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 4<br>
>>>> 3 UP mdc pgtemp01-MDT0000-mdc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 4 UP osc pgtemp01-OST0001-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 5 UP osc pgtemp01-OST0003-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 6 UP osc pgtemp01-OST0005-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 7 UP osc pgtemp01-OST0007-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 8 UP osc pgtemp01-OST0009-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 9 UP osc pgtemp01-OST000b-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 10 UP osc pgtemp01-OST000d-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 11 UP osc pgtemp01-OST000f-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 12 UP osc pgtemp01-OST0011-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 13 UP osc pgtemp01-OST0002-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 14 UP osc pgtemp01-OST0004-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 15 UP osc pgtemp01-OST0006-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 16 UP osc pgtemp01-OST0008-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 17 UP osc pgtemp01-OST000a-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 18 UP osc pgtemp01-OST000c-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 19 UP osc pgtemp01-OST000e-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 20 UP osc pgtemp01-OST0010-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 21 UP osc pgtemp01-OST0012-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 22 UP osc pgtemp01-OST0013-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 23 UP osc pgtemp01-OST0015-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 24 UP osc pgtemp01-OST0017-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 25 UP osc pgtemp01-OST0014-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 26 UP osc pgtemp01-OST0016-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 27 UP osc pgtemp01-OST0018-osc-ffff88206<wbr>906d400<br>
>>>> 281c441f-8aa3-ab56-8812-e459d3<wbr>08f47c 5<br>
>>>> 28 UP lov pgdata01-clilov-ffff88204bab64<wbr>00<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 4<br>
>>>> 29 UP lmv pgdata01-clilmv-ffff88204bab64<wbr>00<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 4<br>
>>>> 30 UP mdc pgdata01-MDT0000-mdc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 31 UP osc pgdata01-OST0001-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 32 UP osc pgdata01-OST0003-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 33 UP osc pgdata01-OST0005-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 34 UP osc pgdata01-OST0007-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 35 UP osc pgdata01-OST0009-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 36 UP osc pgdata01-OST000b-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 37 UP osc pgdata01-OST000d-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 38 UP osc pgdata01-OST000f-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 39 UP osc pgdata01-OST0002-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 40 UP osc pgdata01-OST0004-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 41 UP osc pgdata01-OST0006-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 42 UP osc pgdata01-OST0008-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 43 UP osc pgdata01-OST000a-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 44 UP osc pgdata01-OST000c-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 45 UP osc pgdata01-OST000e-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 46 UP osc pgdata01-OST0010-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 47 UP osc pgdata01-OST0013-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 48 UP osc pgdata01-OST0015-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 49 UP osc pgdata01-OST0017-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 50 UP osc pgdata01-OST0014-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 51 UP osc pgdata01-OST0016-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 52 UP osc pgdata01-OST0018-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 53 UP osc pgdata01-OST0019-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 54 UP osc pgdata01-OST001a-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 55 UP osc pgdata01-OST001b-osc-ffff88204<wbr>bab6400<br>
>>>> 996b1742-82eb-281c-c322-e24467<wbr>2d5225 5<br>
>>>> 56 UP lov pghome01-clilov-ffff88204bb500<wbr>00<br>
>>>> 9ae8f2a9-1cdf-901f-160c-66f70e<wbr>4c10d1 4<br>
>>>> 57 UP lmv pghome01-clilmv-ffff88204bb500<wbr>00<br>
>>>> 9ae8f2a9-1cdf-901f-160c-66f70e<wbr>4c10d1 4<br>
>>>> 58 UP mdc pghome01-MDT0000-mdc-ffff88204<wbr>bb50000<br>
>>>> 9ae8f2a9-1cdf-901f-160c-66f70e<wbr>4c10d1 5<br>
>>>> 59 UP osc pghome01-OST0011-osc-ffff88204<wbr>bb50000<br>
>>>> 9ae8f2a9-1cdf-901f-160c-66f70e<wbr>4c10d1 5<br>
>>>> 60 UP osc pghome01-OST0012-osc-ffff88204<wbr>bb50000<br>
>>>> 9ae8f2a9-1cdf-901f-160c-66f70e<wbr>4c10d1 5<br>
>>>><br>
>>>> Please help, any clues/advice/hints/tips are appricated<br>
>>>><br>
>>>> --<br>
>>>><br>
>>>> Vriendelijke groet,<br>
>>>><br>
>>>> Ger Strikwerda<br>
>>>> Chef Special<br>
>>>> Rijksuniversiteit Groningen<br>
>>>> Centrum voor Informatie Technologie<br>
>>>> Unit Pragmatisch Systeembeheer<br>
>>>><br>
>>>> Smitsborg<br>
>>>> Nettelbosje 1<br>
>>>> 9747 AJ Groningen<br>
>>>> Tel. 050 363 9276<br>
>>>><br>
>>>> "God is hard, God is fair<br>
>>>> some men he gave brains, others he gave hair"<br>
>>>><br>
>>>><br>
>>>> ______________________________<wbr>_________________<br>
>>>> lustre-discuss mailing list<br>
>>>> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
>>>> <a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
>>>><br>
>>><br>
>>><br>
>>><br>
>>> --<br>
>>> Vriendelijke groet,<br>
>>><br>
>>> Ger Strikwerda<br>
>>><br>
>>> Chef Special<br>
>>> Rijksuniversiteit Groningen<br>
>>> Centrum voor Informatie Technologie<br>
>>> Unit Pragmatisch Systeembeheer<br>
>>><br>
>>> Smitsborg<br>
>>> Nettelbosje 1<br>
>>> 9747 AJ Groningen<br>
>>> Tel. 050 363 9276<br>
>>><br>
>>><br>
>>> "God is hard, God is fair<br>
>>> some men he gave brains, others he gave hair"<br>
>>> ______________________________<wbr>_________________<br>
>>> lustre-discuss mailing list<br>
>>> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
>>> <a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
>><br>
>><br>
>><br>
>><br>
>><br>
>> --<br>
>> Vriendelijke groet,<br>
>><br>
>> Ger Strikwerda<br>
>><br>
>> Chef Special<br>
>> Rijksuniversiteit Groningen<br>
>> Centrum voor Informatie Technologie<br>
>> Unit Pragmatisch Systeembeheer<br>
>><br>
>> Smitsborg<br>
>> Nettelbosje 1<br>
>> 9747 AJ Groningen<br>
>> Tel. 050 363 9276<br>
>><br>
>><br>
>> "God is hard, God is fair<br>
>> some men he gave brains, others he gave hair"<br>
>> ______________________________<wbr>_________________<br>
>> lustre-discuss mailing list<br>
>> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
>> <a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
>><br>
>><br>
>><br>
>> --<br>
>> Vriendelijke groet,<br>
>><br>
>> Ger Strikwerda<br>
>><br>
>> Chef Special<br>
>> Rijksuniversiteit Groningen<br>
>> Centrum voor Informatie Technologie<br>
>> Unit Pragmatisch Systeembeheer<br>
>><br>
>> Smitsborg<br>
>> Nettelbosje 1<br>
>> 9747 AJ Groningen<br>
>> Tel. 050 363 9276<br>
>><br>
>><br>
>> "God is hard, God is fair<br>
>> some men he gave brains, others he gave hair"<br>
>><br>
>> ______________________________<wbr>_________________<br>
>> lustre-discuss mailing list<br>
>> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
>> <a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
>><br>
>><br>
>><br>
>><br>
>><br>
>> --<br>
>> Vriendelijke groet,<br>
>><br>
>> Ger Strikwerda<br>
>><br>
>> Chef Special<br>
>> Rijksuniversiteit Groningen<br>
>> Centrum voor Informatie Technologie<br>
>> Unit Pragmatisch Systeembeheer<br>
>><br>
>> Smitsborg<br>
>> Nettelbosje 1<br>
>> 9747 AJ Groningen<br>
>> Tel. 050 363 9276<br>
>><br>
>><br>
>> "God is hard, God is fair<br>
>> some men he gave brains, others he gave hair"<br>
>><br>
>><br>
>><br>
>><br>
>> --<br>
>> Vriendelijke groet,<br>
>><br>
>> Ger Strikwerda<br>
>><br>
>> Chef Special<br>
>> Rijksuniversiteit Groningen<br>
>> Centrum voor Informatie Technologie<br>
>> Unit Pragmatisch Systeembeheer<br>
>><br>
>> Smitsborg<br>
>> Nettelbosje 1<br>
>> 9747 AJ Groningen<br>
>> Tel. 050 363 9276<br>
>><br>
>><br>
>> "God is hard, God is fair<br>
>> some men he gave brains, others he gave hair"<br>
>><br>
>><br>
>><br>
>> --<br>
>> Vriendelijke groet,<br>
>><br>
>> Ger Strikwerda<br>
>><br>
>> Chef Special<br>
>> Rijksuniversiteit Groningen<br>
>> Centrum voor Informatie Technologie<br>
>> Unit Pragmatisch Systeembeheer<br>
>><br>
>> Smitsborg<br>
>> Nettelbosje 1<br>
>> 9747 AJ Groningen<br>
>> Tel. 050 363 9276<br>
>><br>
>><br>
>> "God is hard, God is fair<br>
>> some men he gave brains, others he gave hair"<br>
>><br>
>><br>
>><br>
>> --<br>
>> Vriendelijke groet,<br>
>><br>
>> Ger Strikwerda<br>
>><br>
>> Chef Special<br>
>> Rijksuniversiteit Groningen<br>
>> Centrum voor Informatie Technologie<br>
>> Unit Pragmatisch Systeembeheer<br>
>><br>
>> Smitsborg<br>
>> Nettelbosje 1<br>
>> 9747 AJ Groningen<br>
>> Tel. 050 363 9276<br>
>><br>
>><br>
>> "God is hard, God is fair<br>
>> some men he gave brains, others he gave hair"<br>
>> ______________________________<wbr>_________________<br>
>> lustre-discuss mailing list<br>
>> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
>> <a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
><br>
> Cheers, Andreas<br>
> --<br>
> Andreas Dilger<br>
> Lustre Principal Architect<br>
> Intel Corporation<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
> ______________________________<wbr>_________________<br>
> lustre-discuss mailing list<br>
> <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
> <a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
<br>
______________________________<wbr>_________________<br>
lustre-discuss mailing list<br>
<a href="mailto:lustre-discuss@lists.lustre.org" target="_blank">lustre-discuss@lists.lustre.or<wbr>g</a><br>
<a rel="noreferrer" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org" target="_blank">http://lists.lustre.org/listin<wbr>fo.cgi/lustre-discuss-lustre.<wbr>org</a><br>
</div></div></blockquote></div></div></div><br></div></div>
</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><pre cols="72"><span style="font-family:arial,helvetica,sans-serif"><font size="2">Vriendelijke groet, <br><br>Ger Strikwerda
</font></span><span style="font-family:arial,helvetica,sans-serif"><font size="2">Chef Special
Rijksuniversiteit Groningen
Centrum voor Informatie Technologie
Unit Pragmatisch Systeembeheer
Smitsborg
Nettelbosje 1
9747 AJ Groningen
Tel. 050 363 9276
<br>"God is hard, God is fair<br> some men he gave brains, others he gave hair"<br></font></span></pre></div></div></div></div></div></div></div></div></div></div></div></div>
</div>