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Hi Marc,
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<div class="">Unfortunately, I find the first paragraph of your response … confusing. :-O</div>
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<div class="">I understand your 1st sentence … but isn’t one of the benefits of having only metadata disks in the system pool the ability to then have separate block sizes for your metadata and your data? If so, isn’t the simplest way to do that to have metadataOnly
and dataOnly disks? I recognize that they may not be the *only* way to accomplish that…</div>
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<div class="">Kevin</div>
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<div class="">On Dec 10, 2015, at 11:26 AM, Marc A Kaplan <<a href="mailto:makaplan@us.ibm.com" class="">makaplan@us.ibm.com</a>> wrote:</div>
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<div class=""><font size="2" face="sans-serif" class="">The concept of "metadata" disks pre-dates the addition of POOLs. Correct use of policy SET POOL rules and assignment of disks or SSDs to pools makes</font><br class="">
<font size="2" face="sans-serif" class="">metadata only disks a redundant, potentially confusing concept that the new comer to GPFS (ahem... Spectrum Scale FS) can ignore.</font><br class="">
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<font size="2" face="sans-serif" class="">Metadata always goes to system pool. Other file data can be directed or MIGRATed to any pool you like, using SET POOL or MIGRATE rules.<br class="">
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<div class="">Kevin Buterbaugh - Senior System Administrator</div>
<div class="">Vanderbilt University - Advanced Computing Center for Research and Education</div>
<div class=""><a href="mailto:Kevin.Buterbaugh@vanderbilt.edu" class="">Kevin.Buterbaugh@vanderbilt.edu</a> - (615)875-9633</div>
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