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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, I was just about to post that, and I guess is still the reason a dependent fileset is still the default without the –inode-space
new option fileset creation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I do wonder why there is a limit of 1000, whether it’s just IBM not envisaging any customer needing more than that? We’ve only got
414 at the moment but that will grow to over 500 this year. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Richard<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></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"> gpfsug-discuss-bounces@spectrumscale.org [mailto:gpfsug-discuss-bounces@spectrumscale.org]
<b>On Behalf Of </b>David D. Johnson<br>
<b>Sent:</b> 18 May 2017 15:24<br>
<b>To:</b> gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Subject:</b> Re: [gpfsug-discuss] What is an independent fileset? was: mmbackup with fileset : scope errors<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is one big reason independent filesets are problematic:<o:p></o:p></p>
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<p class="MsoNormal" style="background:white;vertical-align:baseline"><span class="ph"><span style="font-family:"Arial",sans-serif;color:#323232;border:none windowtext 1.0pt;padding:0cm">A5.13:</span></span><b><span style="font-family:"Arial",sans-serif;color:#323232"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><span class="tablecap"><span style="border:none windowtext 1.0pt;padding:0cm">Table 43. Maximum number of filesets</span></span><o:p></o:p></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b>Version of GPFS<o:p></o:p></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b>Maximum Number of Dependent Filesets<o:p></o:p></b></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b>Maximum Number of Independent Filesets<o:p></o:p></b></p>
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<p class="MsoNormal">IBM Spectrum Scale V4<o:p></o:p></p>
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<p class="MsoNormal">10,000<o:p></o:p></p>
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<p class="MsoNormal">1,000<o:p></o:p></p>
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<p class="MsoNormal">GPFS V3.5<o:p></o:p></p>
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<p class="MsoNormal">10,000<o:p></o:p></p>
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<p class="MsoNormal">1,000<o:p></o:p></p>
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<p class="MsoNormal">Another is that each independent fileset must be sized (and resized) for the number of inodes it is expected to contain.<o:p></o:p></p>
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<p class="MsoNormal">If that runs out (due to growth or a runaway user job), new files cannot be created until the inode limit is bumped up.<o:p></o:p></p>
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<p class="MsoNormal">This is true of the root namespace as well, but there’s only one number to watch per filesystem. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> — ddj<o:p></o:p></p>
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<p class="MsoNormal">Dave Johnson<o:p></o:p></p>
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<p class="MsoNormal">Brown University<o:p></o:p></p>
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