Hi Carl I don’t have any direct metrics, but we frequently run our file systems above the 80% level, run split data and metadata.I haven’t experienced any GPFS performance issues that I can attribute to high utilization. I know the documentation talks about this, and the lower values of blocks and sub-blocks will make the file system work harder, but so far I haven’t seen any issues.
Bob Oesterlin Sr Principal Storage Engineer, Nuance From: <[email protected]> on behalf of Carl <[email protected]> Reply-To: gpfsug main discussion list <[email protected]> Date: Sunday, November 5, 2017 at 9:36 PM To: "[email protected]" <[email protected]> Subject: [EXTERNAL] [gpfsug-discuss] Performance of GPFS when filesystem is almost full Hi Folk, Does anyone have much experience with the performance of GPFS as it becomes close to full. In particular I am referring to split data/meta data, where the data pool goes over 80% utilisation. How much degradation do you see above 80% usage, 90% usage? Cheers, Carl.
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