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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">We experienced the same issue and were advised not to use Windows for quorum nodes. We moved our Windows nodes into the storage cluster which was entirely Linux
and that solved it. If this is not an option, perhaps adding some Linux nodes to your remote cluster as quorum nodes would help.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-Roger<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> gpfsug-discuss-bounces@spectrumscale.org [mailto:gpfsug-discuss-bounces@spectrumscale.org]
<b>On Behalf Of </b>IBM Spectrum Scale<br>
<b>Sent:</b> Monday, January 21, 2019 5:35 PM<br>
<b>To:</b> gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Subject:</b> Re: [gpfsug-discuss] Spectrum Scale Cygwin cmd delays<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Hello Renar,</span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">A few things to try:</span><o:p></o:p></p>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Make sure IPv6 is disabled. On each Windows node, run "mmcmi host <hostname>", with <hostname> being itself and each and every node in the cluster. Make sure mmcmi prints valid IPv4 address.</span><o:p></o:p></li></ol>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif">To eliminate DNS issues, try adding IPv4 entries for each cluster node in "c:\windows\system32\drivers\etc\hosts".</span><o:p></o:p></li></ol>
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<span style="font-size:10.0pt;font-family:"Arial",sans-serif">If any anti-virus is active, disable realtime scanning on c:\cygwin64 (wherever you installed cygwin 64-bit).</span><o:p></o:p></li></ol>
<p class="MsoNormal"><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">You can also try debugging a script, say: (from GPFS ksh): DEBUG=1 mmlscluster, and see what takes time.</span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Regards, The Spectrum Scale (GPFS) team<br>
<br>
------------------------------------------------------------------------------------------------------------------<br>
If you feel that your question can benefit other users of Spectrum Scale (GPFS), then please post it to the public IBM developerWroks Forum at
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The forum is informally monitored as time permits and should not be used for priority messages to the Spectrum Scale (GPFS) team.</span><br>
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<br>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">From: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"Grunenberg, Renar" <<a href="mailto:Renar.Grunenberg@huk-coburg.de">Renar.Grunenberg@huk-coburg.de</a>></span><br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">To: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"'gpfsug-discuss@spectrumscale.org'" <<a href="mailto:gpfsug-discuss@spectrumscale.org">gpfsug-discuss@spectrumscale.org</a>></span><br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Date: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">01/21/2019 08:01 AM</span><br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Subject: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">[gpfsug-discuss] Spectrum Scale Cygwin cmd delays</span><br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Sent by: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><a href="mailto:gpfsug-discuss-bounces@spectrumscale.org">gpfsug-discuss-bounces@spectrumscale.org</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Hello All,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">We test spectrum scale on an windows only Client-Cluster (remote mounted to a linux Cluster) but</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">the execution of mm commands in cygwin is very slow.
</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">We have tried the following adjustments to increase the execution speed.</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
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<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo5">
<span style="font-size:11.0pt;font-family:"Calibri",sans-serif">We have installed Cygwin Server as a service (cygserver-config). Unfortunately, this resulted in no faster execution.</span><o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo5">
<span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Adaptation of the hosts file:
</span><span style="font-size:11.0pt;font-family:Consolas;color:#006062">127.0</span><span style="font-size:11.0pt;font-family:Consolas;color:#626200">.</span><span style="font-size:11.0pt;font-family:Consolas;color:#006062">0.1</span><span style="font-size:11.0pt;font-family:Consolas">localhost
cygdrive wpad</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><br>
to prevent any DNS problems when accessing „</span><span style="font-size:11.0pt;font-family:Consolas;color:green">/cygdrive/</span><span style="font-size:11.0pt;font-family:Consolas;color:#626200">...“</span><o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo5">
<span style="color:#2F2F2F">Started them as Administrator</span><o:p></o:p></li></ul>
<p class="MsoNormal"> <o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt">All adjustments have so far not led to any improvement. Are there any hints to enhance the cmd execution time on windows (w2k12 actual used)<o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt">Regards Renar<o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal"><br>
<span style="font-family:"Arial",sans-serif">Renar Grunenberg<br>
Abteilung Informatik - Betrieb<br>
<br>
HUK-COBURG<br>
Bahnhofsplatz<br>
96444 Coburg</span><o:p></o:p></p>
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