Hi Rick,

I tried your suggestion, however, --mgsnode is mandatory, otherwise it won't mount after typing service lustre start

Thanks for your help, I believe Oleg's tip helped, adding OST helped although the message still appears 

On Thu, Sep 18, 2014 at 6:09 PM, Mohr Jr, Richard Frank (Rick Mohr) <rmohr@utk.edu> wrote:

On Sep 18, 2014, at 5:37 AM, Dennis Zheleznyak <dennis@eshkol.com.co>
 wrote:
> 3. Created MGS and MDT:
> mkfs.lustre --mgs /dev/sdb
> mkfs.lustre --mdt --mgsnode=1.1.1.125@tcp0 --network=tcp0 --fsname=fs01 --index=0 /dev/sdc

Based on the error message, I am assuming the MGT and MDT are on the same node.  If so, you could try omitting the "--mgsnode" and "--network" options to see if that is playing any role in the failure.  Without those options, I believe the MDT will default to contacting the localhost and maybe that will work.

I also came across this ticket: https://jira.hpdd.intel.com/browse/LU-4475.

When you try to mount the osts, do you see "Transport endpoint is not connected" error messages?

--
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu