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<p class="MsoNormal">Hi Scott<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This refers to the file system format which is independent of the NSD version number. File systems can be upgraded but all the NSDs are still at V1. For instance, here is an NSD I know is still V1:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[root@gpfs2-gpfs01 ~]# grep msa0319VOL2 volmaps<o:p></o:p></p>
<p class="MsoNormal">msa0319VOL2 mpathel (3600c0ff0001497e259ebac5001000000) dm-19 14T sdad 0[active][ready] sdft 1[active][ready] sdam 2[active][ready] sdgc 3[active][ready]<o:p></o:p></p>
<p class="MsoNormal">[root@gpfs2-gpfs01 ~]# mmfsadm test readdescraw /dev/dm-19 | grep " original format"<o:p></o:p></p>
<p class="MsoNormal"> original format version 1001, cur version 1600 (mgr 1600, helper 1600, mnode 1600)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The file system version is current however.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Bob Oesterlin<br>
Sr Principal Storage Engineer, Nuance<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<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 Scott Fadden <sfadden@us.ibm.com><br>
<b>Reply-To: </b>gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Date: </b>Thursday, July 27, 2017 at 3:33 PM<br>
<b>To: </b>"gpfsug-discuss@spectrumscale.org" <gpfsug-discuss@spectrumscale.org><br>
<b>Cc: </b>"gpfsug-discuss@spectrumscale.org" <gpfsug-discuss@spectrumscale.org><br>
<b>Subject: </b>[EXTERNAL] Re: [gpfsug-discuss] NSD V2 vs V1 - how can you tell?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p style="margin:0in;margin-bottom:.0001pt;background:white;font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:black"># mmfsadm test readdescraw /dev/dm-14 | grep " original format"<o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt;background:white;font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:black"> </span><span class="apple-converted-space"><b><span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:#C33720"> </span></b></span><b><span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:#C33720">original
format</span></b><span class="apple-converted-space"><span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:black"> </span></span><span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:black">version 1600, cur version 1700 (mgr 1700,
helper 1700, mnode 1700)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">The harder part is what version number = v2 and what matches version 1. The real answer is there is not a simple one, it is not really v1 vs v2 it is what feature
you are interested in. Just one small example<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"> <o:p></o:p></span></p>
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<p style="margin:0in;margin-bottom:.0001pt;background:white"><span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:black">4K Disk SECTOR support started in 1403<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:8.5pt;font-family:"Menlo",sans-serif;color:black">Dynamically enabling quotas started in 1404<o:p></o:p></span></p>
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