<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;
font-weight:normal;
font-style:normal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Ben,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Lustre version is lustre-2.10.54_20_g66bb2d1.tar.gz (recently cloned from github). Kernel is </span><span style='color:#1F497D'>“3.10.0-514.el7.x86_64“.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>OS is RHEL 7.3.</span><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Parag<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Ben Evans [mailto:bevans@cray.com] <br><b>Sent:</b> Wednesday, November , 2017 11:22 PM<br><b>To:</b> parag_k; Mohr Jr, Richard Frank (Rick Mohr)<br><b>Cc:</b> Lustre discussion<br><b>Subject:</b> Re: [lustre-discuss] mdt mounting error<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>What Lustre version and kernel version are you using?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>I've seen issues with Lustre 2.7 and CentOS 7.4 where this happened.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>-Ben Evans<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>From: </span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>lustre-discuss <<a href="mailto:lustre-discuss-bounces@lists.lustre.org">lustre-discuss-bounces@lists.lustre.org</a>> on behalf of parag_k <<a href="mailto:parag_k@citilindia.com">parag_k@citilindia.com</a>><br><b>Date: </b>Wednesday, November 1, 2017 at 12:41 PM<br><b>To: </b>"Mohr Jr, Richard Frank (Rick Mohr)" <<a href="mailto:rmohr@utk.edu">rmohr@utk.edu</a>><br><b>Cc: </b>Lustre discussion <<a href="mailto:lustre-discuss@lists.lustre.org">lustre-discuss@lists.lustre.org</a>><br><b>Subject: </b>Re: [lustre-discuss] mdt mounting error<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Hi, <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Yes mgt was mounted when i tried mdt mounting. Mgt got mounted smoothly.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Firewall is disabled.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div id="composer_signature"><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Regards, <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Parag<o:p></o:p></span></p></div></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>-------- Original message --------<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>From: "Mohr Jr, Richard Frank (Rick Mohr)" <<a href="mailto:rmohr@utk.edu">rmohr@utk.edu</a>> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Date: 01/11/2017 9:01 pm (GMT+05:30) <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>To: Parag Khuraswar <<a href="mailto:parag_k@citilindia.com">parag_k@citilindia.com</a>> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Cc: Raj <<a href="mailto:rajgautam@gmail.com">rajgautam@gmail.com</a>>, Lustre discussion <<a href="mailto:lustre-discuss@lists.lustre.org">lustre-discuss@lists.lustre.org</a>> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'>Subject: Re: [lustre-discuss] mdt mounting error <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><br>> On Nov 1, 2017, at 7:18 AM, Parag Khuraswar <<a href="mailto:parag_k@citilindia.com">parag_k@citilindia.com</a>> wrote:<br>> <br>> For mgt –<br>> mkfs.lustre <a href="mailto:--servicenode=10.2.1.204@o2ib">--servicenode=10.2.1.204@o2ib</a> <a href="mailto:--servicenode=10.2.1.205@o2ib">--servicenode=10.2.1.205@o2ib</a> --mgs /dev/mapper/mpathc<br>> <br>> For mdt<br>> mkfs.lustre --fsname=home <a href="mailto:--mgsnode=10.2.1.204@o2ib">--mgsnode=10.2.1.204@o2ib</a> <a href="mailto:--mgsnode=10.2.1.205@o2ib">--mgsnode=10.2.1.205@o2ib</a> <a href="mailto:--servicenode=10.2.1.204@o2ib">--servicenode=10.2.1.204@o2ib</a> <a href="mailto:--servicenode=10.2.1.205@o2ib">--servicenode=10.2.1.205@o2ib</a> --mdt --index=0 /dev/mapper/mpatha<br>> <br><br>Did you mount the mgt before trying to mount the mdt? If so, did you get any errors when trying to mount the mgt?<br><br>Another thing to check is firewall settings. If there are firewall rules blocking any traffic, that could cause a problem.<br><br>--<br>Rick Mohr<br>Senior HPC System Administrator<br>National Institute for Computational Sciences<br><a href="http://www.nics.tennessee.edu">http://www.nics.tennessee.edu</a><o:p></o:p></span></p></div></div></div></body></html>