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Modify QoS policy groups created in ONTAP 9.19.1 or later before reverting from ONTAP 9.19.1

Contributors netapp-aherbin
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Adaptive and non-adaptive QoS policy groups are automatically enabled to temporarily increase a workload’s throughput ceiling by 50% for a duration of 1 second to respond to short-term demands for higher performance by default. Beginning with ONTAP 9.19.1, you can modify these default settings. In ONTAP 9.18.1 and earlier these settings cannot be changed. If you have modified the default settings on any QoS policy group created in ONTAP 9.19.1 or later, you must reset them before you can revert from ONTAP 9.19.1 to ONTAP 9.18.1.

Steps

  1. Verify if you have any QoS policy groups enabled for automatic throughput ceiling increase:

    qos policy-group show – instance

  2. If any policy groups are configured with burst-percent, burst-iops, and burst-duration, set these options to 0.

    qos policy-group modify -policy-group <policy-group> -burst-percent 0 -burst-iops 0 -burst-duration 0