If you're into pondering some more tweaks: -i InodeSize is tunable system pool : --metadata-block-size is tunable separately from -B blocksize On ESS you might want to use different block size and error correcting codes for (v)disks that hold system pool. Generally I think you'd want to set up system pool for best performance for relatively short reads and updates. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20190410/ada3234d/attachment.html>