[Lustre-discuss] Lustre 1.6.4.2 (IP Address change)

[Andreas Dilger]

On Sep 02, 2008  09:32 +0530, anil kumar wrote:
> Does any one have info related to IP Address changed,

See manual.lustre.org and look in the manual for --writeconf.  I think it
even has a sub-section on how to change IP address of a server.

> I had changed the IP Address of MDT & OST server & while i try to mount the
> filesystem i get the following error,
> 
> [root at hyd60001oss /]# mount -t lustre hyd60001mdt at tcp0:/datafs /lustrefs
> mount.lustre: mount hyd60001mdt at tcp0:/datafs at /lustrefs failed: No such
> device
> Are the lustre modules loaded?
> Check /etc/modprobe.conf and /proc/filesystems
> Note 'alias lustre llite' should be removed from modprobe.conf
> [root at hyd60001oss /]#
> it display the nid,
> 
> [root at hyd60001mdt /]# lctl list_nids
> 10.176.86.34 at tcp
> [root at hyd60001mdt /]#
> while i try to mount using IP, errror is same,
> [root at hyd60001oss /]# mount -t lustre 10.176.86.34 at tcp:/datafs /lustrefs
> mount.lustre: mount 10.176.86.34 at tcp:/datafs at /lustrefs failed: No such
> device
> Are the lustre modules loaded?
> Check /etc/modprobe.conf and /proc/filesystems
> Note 'alias lustre llite' should be removed from modprobe.conf
> [root at hyd60001oss /]#
> ON MGS server i see the following, resources are up,
> 
> [root at hyd60001mdt /]# lctl dl
>   0 UP mgs MGS MGS 13
>   1 UP mgc MGC10.176.86.34 at tcp 9b943267-ac2b-603c-697d-a2962f482949 5
>   2 UP mdt MDS MDS_uuid 3
>   3 UP lov datafs-mdtlov datafs-mdtlov_UUID 4
>   4 UP mds datafs-MDT0000 datafs-MDT0000_UUID 4
>   5 UP osc datafs-OST0000-osc datafs-mdtlov_UUID 5
>   6 UP osc datafs-OST0001-osc datafs-mdtlov_UUID 5
>   7 UP osc datafs-OST0002-osc datafs-mdtlov_UUID 5
>   8 UP osc datafs-OST0003-osc datafs-mdtlov_UUID 5
> [root at hyd60001mdt /]#
> Please let me know if some fixed such issues,
> 
> Thanks,
> Anil

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Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.