[Lustre-discuss] 2.2.0 can't mount via tcp?

Jacek Herold jacek.herold at quadricom.pl
Mon Jun 11 00:00:26 PDT 2012

W dniu 2012-06-08 12:24, Marek Magryś pisze:
> Hi Michael,
> Check if http://jira.whamcloud.com/browse/LU-1308 is what you are
> looking for.
> Cheers,
> Marek
> On 06.06.2012 20:01, Michael Di Domenico wrote:
>> I've setup a new lustre system using 2.2.0-RC2 on Rhel6 with
>> infiniband (distro version).  Everything seems to be working okay.
>> However, i tried to mount my first machine via TCP only (no ib card
>> present).  I can lctl ping the MGS/MDT/OST nodes, but can't mount
>> here's a snipped version of the error log from the client (no output
>> comes out on the mds)
>> can't add initial connection
>> setup data1-mdt0000-mdc-ffff88013991e00 failed (-2)
>> Err -2 on cfg command: lustre cmd=cf003 0:data1-mdt0000-dc
>> 1:data1-mdt0000_uuid 2: at o2ib
>> mgc192.168.1.28:tcp: the configuration from log 'data1-client' failed (-2)
>> unable to process logs: -2
>> device 3 not setup
>> got rc -108 from cancel rpc: canceling anyway
>> i see in the third line that it references o2ib, but i don't see why
>> it should, the client has no IB card and when i created the MGS/MDT
>> filesystems, i specified the NIDS of both the TCP and O2IB
>> connections.
Please check your /etc/modprobe.conf. There should be line simillar to this:

options lnet networks=tcp(ib0),o2ib(ib0)

You may also check the NID's. There should be simmillar to this:

root at mds1 ~ # lctl list_nids at o2ib at tcp
root at mds1 ~ #

Best regads
Jacek Herold

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