<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 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:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
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;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
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-GB" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I wonder if anyone has seen this… I am (not) having fun with the rescan-scsi-bus.sh command especially with the -r switch. Even though there are no devices removed the script seems to interrupt currently working NSDs and these messages
appear in the mmfs.logs:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">2019-06-25_06:30:48.706+0100: [I] Connected to <IP> <node> <c0n0><o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:48.764+0100: [E] Local access to <NSD> failed with EIO, switching to access the disk remotely.<o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:51.187+0100: [E] Local access to <NSD> failed with EIO, switching to access the disk remotely.<o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:51.188+0100: [E] Local access to <NSD> failed with EIO, switching to access the disk remotely.<o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:51.188+0100: [N] Connecting to <IP> <node> <c0n5><o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:51.195+0100: [I] Connected to <IP> <node> <c0n5><o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:59.857+0100: [N] Connecting to <IP> <node> <c0n4><o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:30:59.863+0100: [I] Connected to <IP> <node> <c0n4><o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:33:30.134+0100: [E] Local access to <NSD> failed with EIO, switching to access the disk remotely.<o:p></o:p></p>
<p class="MsoNormal">2019-06-25_06:33:30.151+0100: [E] Local access to <NSD> failed with EIO, switching to access the disk remotely.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">These messages appear roughly at the same time each day and I’ve checked the NSDs via mmlsnsd and mmlsdisk commands and they are all ‘ready’ and ‘up’. The multipaths to these NSDs are all fine too.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there a way of finding out what ‘access’ (local or remote) a particular node has to an NSD? And is there a command to force it to switch to local access – ‘mmnsdrediscover’ returns nothing and run really fast (contrary to the statement
‘This may take a while’ when it runs)?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any ideas appreciated!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Son<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;color:#888888;mso-fareast-language:EN-GB">Son V Truong - Senior Storage Administrator<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;color:#888888;mso-fareast-language:EN-GB">Advanced Computing Research Centre<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;color:#888888;mso-fareast-language:EN-GB">IT Services, University of Bristol<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;color:#888888;mso-fareast-language:EN-GB">Email: <a href="mailto:s.truong@bristol.ac.uk" target="_blank"><span style="color:#1155CC">son.truong@bristol.ac.uk</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;color:#888888;mso-fareast-language:EN-GB">Tel: Mobile: +44 (0) 7732 257 232<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;color:#888888;mso-fareast-language:EN-GB">Address: 31 Great George Street, Bristol, BS1 5QD<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>