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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks, that worked.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Will this be addresses in a future update?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Cheers,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Luke<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Luke Sudbery<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Architecture, Infrastructure and Systems<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Advanced Research Computing, IT Services<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Room 103, Computer Centre G5, Elms Road<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Please note I don’t work on Monday and work from home on Friday.<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Truong Vu <truongv@us.ibm.com>
<b>On Behalf Of </b>scale@us.ibm.com<br>
<b>Sent:</b> 28 March 2019 20:09<br>
<b>To:</b> gpfsug main discussion list <gpfsug-discuss@spectrumscale.org>; Luke Sudbery (IT Research Support) <L.R.Sudbery@bham.ac.uk><br>
<b>Subject:</b> Re: [gpfsug-discuss] Filesystem descriptor discs for GNR<o:p></o:p></span></p>
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<p><span style="font-size:10.0pt">This is a known issue. The workaround is to use
</span>--force-nsd-mismatch option. Just <span style="font-size:10.0pt">make sure that the failure group is different from those used by the vdisk NSDs</span><br>
<br>
<span style="font-size:10.0pt">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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https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479</a>.
<br>
<br>
If your query concerns a potential software error in Spectrum Scale (GPFS) and you have an IBM software maintenance contract please contact 1-800-237-5511 in the United States or your local IBM Service Center in other countries.
<br>
<br>
The forum is informally monitored as time permits and should not be used for priority messages to the Spectrum Scale (GPFS) team.</span><br>
<br>
<img border="0" width="16" height="16" style="width:.1666in;height:.1666in" id="_x0000_i1025" src="cid:image001.gif@01D4E5BA.29BE1D70" alt="Inactive hide details for Luke Sudbery ---03/28/2019 01:45:16 PM---We have a 2 site Lenovo DSS-G based filesystem, which with ("><span style="font-size:10.0pt;color:#424282">Luke
 Sudbery ---03/28/2019 01:45:16 PM---We have a 2 site Lenovo DSS-G based filesystem, which with (some of the data) replicated across the</span><br>
<br>
<span style="font-size:10.0pt;color:#5F5F5F">From: </span><span style="font-size:10.0pt">Luke Sudbery <<a href="mailto:L.R.Sudbery@bham.ac.uk">L.R.Sudbery@bham.ac.uk</a>></span><br>
<span style="font-size:10.0pt;color:#5F5F5F">To: </span><span style="font-size:10.0pt">"<a href="mailto:gpfsug-discuss@spectrumscale.org">gpfsug-discuss@spectrumscale.org</a>" <<a href="mailto:gpfsug-discuss@spectrumscale.org">gpfsug-discuss@spectrumscale.org</a>></span><br>
<span style="font-size:10.0pt;color:#5F5F5F">Date: </span><span style="font-size:10.0pt">03/28/2019 01:45 PM</span><br>
<span style="font-size:10.0pt;color:#5F5F5F">Subject: </span><span style="font-size:10.0pt">[gpfsug-discuss] Filesystem descriptor discs for GNR</span><br>
<span style="font-size:10.0pt;color:#5F5F5F">Sent by: </span><span style="font-size:10.0pt"><a href="mailto:gpfsug-discuss-bounces@spectrumscale.org">gpfsug-discuss-bounces@spectrumscale.org</a></span><o:p></o:p></p>
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<tt><span style="font-size:10.0pt">We have a 2 site Lenovo DSS-G based filesystem, which with (some of the data) replicated across the 2 sites. We'd like to a 3rd filesystem descriptor disk so we can lose one site and still have filesystem descriptor quorum.
 But this seems incompatible unless we make new vdisks - which we can't do on non native raid servers.</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<tt>We've added a new NSD which now has a free disc, but can't add that disk as descOnly.</tt><br>
<br>
<tt>Adding the new descriptor disk to the system pool says:</tt><br>
<tt> mmadddisk: A storage pool may not contain both vdisk NSDs and non-vdisk NSDs.</tt><br>
<br>
<tt>Adding the new disk to a new system_desc pool says:</tt><br>
<tt> mmadddisk: Disk usage descOnly is incompatible with storage pool system_desc.</tt><br>
<br>
<tt>Tried adding config to specify the system_desc pool is for metadataOnly and it still says it's incompatible.</tt><br>
<br>
<tt>There is no mention of descOnly disks here: <a href="https://www.ibm.com/support/knowledgecenter/en/SSFKCN_4.1.0/com.ibm.cluster.gpfs.v4r1.gpfs200.doc/bl1adv_planning.htm">
https://www.ibm.com/support/knowledgecenter/en/SSFKCN_4.1.0/com.ibm.cluster.gpfs.v4r1.gpfs200.doc/bl1adv_planning.htm</a></tt><br>
<br>
<tt>Is it possible add a non-vdisk descOnly NSD to a dss-g/GNR solution?</tt><br>
<br>
<tt>Cheers,</tt><br>
<br>
<tt>Luke</tt><br>
<br>
<tt>-- </tt><br>
<tt>Luke Sudbery</tt><br>
<tt>Architecture, Infrastructure and Systems</tt><br>
<tt>Advanced Research Computing, IT Services</tt><br>
<tt>Room 103, Computer Centre G5, Elms Road</tt><br>
<br>
<tt>Please note I don't work on Monday and work from home on Friday.</tt><br>
<br>
<br>
<tt>_______________________________________________</tt><br>
<tt>gpfsug-discuss mailing list</tt><br>
<tt>gpfsug-discuss at spectrumscale.org</tt><br>
<tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</a></tt><br>
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