Our customer wants to create QoS Policy "templates" that would be able to apply to any SVM, any volume across a cluster. They want to consolidate their hundreds of individual QoS policies that are created 1:1 for each volume into using several fixed performance tiers. Their thought is they need a "cluster scope" QoS policy to accomplish that. Per a recent Support case, the Performance team said that the CLI command does not offer a "scope" option and that the highest level object to define a QoS policy is an SVM.
NOTE: ONTAP defines 3 fixed "cluster" scoped QoS policies but their throughputs cannot be changed to a customer's needs (see system policies named extreme-fixed, performance-fixed, and value-fixed).
However, the REST API "POST /storage/qos/policies" has in its Request Body a field called "scope" that supposedly can be set to either "cluster" or "svm". Can someone confirm if they have found this REST API call to be successful in creating a custom "cluster" scoped policy (with capacity_shared set to false)?
https://docs.netapp.com/us-en/ontap-restapi-9161/post-storage-qos-policies.html