What about filesystem atime updates. We recently changed the default to «relatime». Could that maybe influence heat tracking?
-jf tir. 13. aug. 2019 kl. 11:29 skrev Ulrich Sibiller < [email protected]>: > On 12.08.19 15:38, Marc A Kaplan wrote: > > My Admin guide says: > > > > The loss percentage and period are set via the configuration > > variables *fileHeatLossPercent *and *fileHeatPeriodMinutes*. By default, > the file access temperature > > is not > > tracked. To use access temperature in policy, the tracking must first be > enabled. To do this, set > > the two > > configuration variables as follows:* > > Yes, I am aware of that. > > > fileHeatLossPercent* > > The percentage (between 0 and 100) of file access temperature dissipated > over the* > > fileHeatPeriodMinutes *time. The default value is 10. > > Chapter 25. Information lifecycle management for IBM Spectrum Scale > *361** > > fileHeatPeriodMinutes* > > The number of minutes defined for the recalculation of file access > temperature. To turn on > > tracking, *fileHeatPeriodMinutes *must be set to a nonzero value. The > default value is 0 > > > > > > SO Try setting both! > > Well, I have not because the documentation explicitly mentions a default. > What's the point of a > default if I have to explicitly configure it? > > > ALSO to take effect you may have to mmshutdown and mmstartup, at least > on the (client gpfs) nodes > > that are accessing the files of interest. > > I have now configured both parameters and restarted GPFS. Ran a tar over a > directory - still no > change. I will wait for 720minutes and retry (tomorrow). > > Thanks > > Uli > > -- > Science + Computing AG > Vorstandsvorsitzender/Chairman of the board of management: > Dr. Martin Matzke > Vorstand/Board of Management: > Matthias Schempp, Sabine Hohenstein > Vorsitzender des Aufsichtsrats/ > Chairman of the Supervisory Board: > Philippe Miltin > Aufsichtsrat/Supervisory Board: > Martin Wibbe, Ursula Morgenstern > Sitz/Registered Office: Tuebingen > Registergericht/Registration Court: Stuttgart > Registernummer/Commercial Register No.: HRB 382196 > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss >
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