On Tue, 2018-01-16 at 15:47 +0000, Carl Zetie wrote: > Maybe this would make for a good session at a future user group > meeting -- perhaps as an interactive session? IBM could potentially > provide a facilitator from our Design practice. >
Most of it in my view is standard best practice regardless of the file system in use. So in our mandatory training for the HPC, we tell our users don't use whacked out characters in your file names and directories. Specifically no backticks, no asterik's, no question marks, no newlines (yes really), no slashes (either forward or backward) and for Mac users don't start the name with a space (forces sorting to the top). We recommend sticking to plain ASCII so no accented characters either (harder if your native language is not English I guess but we are UK based so...). We don't enforce that but if it causes the user problems then they are on their own. We also strongly recommend using ISO 8601 date formats in file names to get date sorting from a directory listing too. Surprisingly not widely known about, but a great "life hack". Then it boils down to don't create zillions of files. I would love to be able to somehow do per directory file number quota's where one could say set a default of a few thousand. Users would then have to justify needing a larger quota. Sure you can set a file number quota but that does not stop them putting them all in one directory. If users really need to have zillions of files then charge them more so you can afford to beef up your metadata disks to SSD. JAB. -- Jonathan A. Buzzard Tel: +44141-5483420 HPC System Administrator, ARCHIE-WeSt. University of Strathclyde, John Anderson Building, Glasgow. G4 0NG _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss