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enable<br>
mpathconf --enable --with_multipathd y<br>
show config<br>
multipathd show config<br>
<br>
<div class="moz-cite-prefix">On 4/25/16 3:27 PM, Jan Finnerman Load
wrote:<br>
</div>
<blockquote cite="mid:309ECED7-0A51-414F-A5FA-4710270FB347@load.se"
type="cite">
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<div>Hi,</div>
<div><br>
</div>
<div>I realize this might not be strictly GPFS related but I’m
getting a little desperate here…</div>
<div>I’m doing an implementation of GPFS/Spectrum Scale 4.2 at a
customer and struggle on a question of disk multipathing for the
intended NSD disks with their direct attached SAS disk systems.</div>
<div> If I do a <i><b>multipath –ll</b></i>, after a few seconds
I just get the prompt back. I expected to see the usual big
amount of path info, but nothing there.</div>
<div><br>
</div>
<div>If I do a <i><b>multipathd –k</b></i> and then a show
config, I see all the Dell disk luns with reasonably right
parameters. I can see them as /dev/sdf, /dev/sdg, etc. devices.</div>
<div>I can also add them in PowerKVM:s Kimchi web interface and
even deploy a GPFS installation on it. The big question is,
though, how do I get multipathing to work ?</div>
<div>Do I need any special driver or setting in the multipath.conf
file ?</div>
<div>I found some of that but more generic e.g. for RedHat 6, but
now we are in PowerKVM country.</div>
<div><br>
</div>
<div>The platform consists of:</div>
<div>4x IBM S812L servers</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>SAS
controller</div>
<div> <span class="Apple-tab-span" style="white-space:pre"> </span>PowerKVM
3.1</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>Red
Hat 7.1</div>
<div>2x Dell MD3460 <b>SAS</b> disk systems</div>
<div>No switches</div>
<div><br>
</div>
<div>
<div id="">
<p class="MsoNormal" style="font-family: Calibri, sans-serif;
margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
Jan</p>
<p class="MsoNormal" style="font-family: Calibri, sans-serif;
margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="color: rgb(31, 73, 125);">///Jan</span></p>
<div style="font-size: medium;">
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<br>
</p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<img src="cid:part1.01010308.03000406@genome.wustl.edu"
type="image/png"></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="color: rgb(23, 54, 93);">Jan Finnerman<o:p></o:p></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;
font-size: 11pt;"><span style="color: rgb(0, 0, 128);
font-size: 16px; background-color: rgb(255, 255, 255);">Senior
Technical consultant</span></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<br>
</p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="color: rgb(23, 54, 93);"><img
id="Bild_x0020_2"
src="cid:part2.07080204.01040702@genome.wustl.edu"
alt="CertTiv_sm" type="image/png" height="51"
width="106"></span></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<br>
</p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<img src="cid:part3.01010404.04060703@genome.wustl.edu"
type="image/png" style="font-family: Calibri; font-size:
medium;"></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="color: rgb(31, 73, 125); font-size: 9pt;">Kista
Science Tower</span></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="font-size: 9pt; color: rgb(31, 73, 125);">164
51 Kista<o:p></o:p></span></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="font-size: 9pt; color: rgb(31, 73, 125);">Mobil:
+46 (0)70 631 66 26<o:p></o:p></span></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="font-size: 9pt; color: rgb(31, 73, 125);">Kontor:
+46 (0)8 633 66 00/26</span></p>
<p class="MsoNormal" style="font-family: Calibri,
sans-serif; margin: 0cm 0cm 0.0001pt; font-size: 11pt;">
<span style="font-size: 9pt; color: rgb(31, 73, 125);"><a
moz-do-not-send="true"
href="mailto:jan.finnerman@load.se"><a class="moz-txt-link-abbreviated" href="mailto:jan.finnerman@load.se">jan.finnerman@load.se</a></a></span></p>
</div>
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