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<div>Thanks Rick,</div>
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<div>1) Run "debugfs -c $MGT_DEVICE" on the MGS server, and then cd into the CONFIGS/ directory to check if the "client1-client" config file exists.</div>
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<div><font color="red">[root@mgs]# <span style="background-color:yellow;">debugfs -c -R 'ls -l CONFIGS' /dev/mapper/mpathcp1</span></font></div>
<div><font color="red">debugfs 1.42.12.wc1 (15-Sep-2014)</font></div>
<div><font color="red">/dev/mapper/mpathcp1: catastrophic mode - not reading inode or group bitmaps</font></div>
<div><font color="red"> 32769 40755 (2) 0 0 4096 6-Jan-2015 13:09 .</font></div>
<div><font color="red"> 2 40755 (2) 0 0 4096 6-Jan-2015 13:10 ..</font></div>
<div><font color="red"> 12 100644 (1) 0 0 12288 6-Jan-2015 13:10 mountdata</font></div>
<div><font color="red"> 81 100644 (1) 0 0 0 6-Jan-2015 13:10 params-client</font></div>
<div><font color="red"> 82 100644 (1) 0 0 0 6-Jan-2015 13:10 params</font></div>
<div><font color="red"> 83 100644 (1) 0 0 11200 6-Jan-2015 13:10 temp-client</font></div>
<div><font color="red"> 84 100644 (1) 0 0 9792 6-Jan-2015 13:10 temp-MDT0000</font></div>
<div><font color="red"> 104 100644 (1) 0 0 10600 6-Jan-2015 13:12 client2-client</font></div>
<div><font color="red"> 105 100644 (1) 0 0 8880 6-Jan-2015 13:12 client2-OST0000</font></div>
<div><font color="red"> <span style="background-color:yellow;">107 100644 (1) 0 0 10600 6-Jan-2015 23:38 client1-client</span></font></div>
<div><font color="red"><span style="background-color:yellow;"> 108 100644 (1) 0 0 8880 6-Jan-2015 23:38 client1-OST0000</span></font></div>
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<div>2) Run a tool like wireshark to monitor the TCP traffic to see if you can determine where the communication is breaking down</div>
<div> </div>
<div><font color="red">Is there an RPM package for this ? Let me know if you have that information on top of your head else will look for it.</font></div>
<div> </div>
<div>3) Turn up the Lustre debug level to see if it gives you any more information.</div>
<div> </div>
<div><font color="red">Okay</font></div>
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<div>-----Original Message-----<br>
From: Mohr Jr, Richard Frank (Rick Mohr) [<a href="mailto:rmohr@utk.edu">mailto:rmohr@utk.edu</a>]
<br>
Sent: Wednesday, January 07, 2015 2:12 PM<br>
To: Gupta, Amit<br>
Cc: lustre-discuss@lists.lustre.org<br>
Subject: Re: [Lustre-discuss] Newbie - Unable to mount the OST on the Client</div>
<div> </div>
<div>The only other things I can think of at the moment to try are:</div>
<div> </div>
<div>1) Run "debugfs -c $MGT_DEVICE" on the MGS server, and then cd into the CONFIGS/ directory to check if the "client1-client" config file exists.</div>
<div> </div>
<div>2) Run a tool like wireshark to monitor the TCP traffic to see if you can determine where the communication is breaking down</div>
<div> </div>
<div>3) Turn up the Lustre debug level to see if it gives you any more information.</div>
<div> </div>
<div>--</div>
<div>Rick Mohr</div>
<div>Senior HPC System Administrator</div>
<div>National Institute for Computational Sciences <a href="http://www.nics.tennessee.edu">http://www.nics.tennessee.edu</a></div>
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