mmchqos fs --enable ... maintenance=1234iops ... Will apply the new settings to all currently running and future maintenance commands.
There is just a brief delay (I think it is well under 30 seconds) for the new settings to be propagated and become effective on each node. You can use `mmlsqos fs --seconds 70` to observe performance. Better, install gnuplot and run samples/charts/qosplot.pl or hack the script to push the data into your favorite plotter. --marc From: "Buterbaugh, Kevin L" <[email protected]> To: gpfsug main discussion list <[email protected]> Date: 07/29/2016 11:57 AM Subject: [gpfsug-discuss] mmchqos and already running maintenance commands Sent by: [email protected] Hi All, Looking for a little clarification here … in the man page for mmchqos I see: * When you change allocations or mount the file system, a brief delay due to reconfiguration occurs before QoS starts applying allocations. If I’m already running a maintenance command and then I run an mmchqos does that mean that the already running maitenance command will adjust to the new settings or does this only apply to subsequently executed maintenance commands? Thanks… — Kevin Buterbaugh - Senior System Administrator Vanderbilt University - Advanced Computing Center for Research and Education [email protected] - (615)875-9633 _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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