<html 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=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.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>
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:12.0pt">Yes, there were issues with this in pre 4.2? versions of GPFS. My clusters are at 4.2.2 with CCR (working my way to 4.2.3-5) and I’ve been using this process on my quorum nodes when I need to update them:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">mmchnode –quorum -N new-node (designate a new quorum node, going from 3 to 4)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">mmchnode –nonquorum -N old-node (remove existing node to be updated)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I can then shutdown “old-node” and then when I bring it back up, I reverse the process. I’ve had no issues using this process.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Bob Oesterlin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Sr Principal Storage Engineer, Nuance<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black"><gpfsug-discuss-bounces@spectrumscale.org> on behalf of "J. Eric Wonderley" <eric.wonderley@vt.edu><br>
<b>Reply-To: </b>gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Date: </b>Friday, December 8, 2017 at 10:11 AM<br>
<b>To: </b>gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Subject: </b>[EXTERNAL] [gpfsug-discuss] mm'add|del'node with ccr enabled<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><a name="_MailOriginalBody">Hello: <o:p></o:p></a></p>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">If I recall correctly this does not work...correct? I think the last time I attempted this was gpfs version <=4.1. I think I attempted to add a quorum node.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">The process was that I remember doing was mmshutdown -a, mmchcluster --ccr-disable, mmaddnode yadayada, mmchcluster --ccr-enable, mmstartup.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">I think with ccr disabled mmaddnode can be run with gpfs up. We would like to run with ccr enabled but it does make adding/removing nodes unpleasant.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">Would this be required of a non-quorum node?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">Any changes concerning this with gpfs version >=4.2?<o:p></o:p></span></p>
</div>
</div>
</div>
</body>
</html>