First some background: we are running OnTAP 9.5P14 on a 4-node AFF8080 cluster. I am moving volumes and shelves over to reduce this down to a 2-node cluster by the end of this month.
We have never used QOS policies because we've never had a need with a 4 node AFF. Now that we're dropping to 2 nodes, I believe we might potentially need to prevent a few test/dev volumes from dominating the CPU. As a result I am researching the QOS feature in detail for the first time. I am reading the basic documentation in the Documentation Center, however I have not been able to find a best practices guide for this feature. Is there one, and/or can anyone point to a good blog post or other article that provides some recommendations? I am not a performance expert and want to be sure I don't break anything. Would appreciate any recommendations! Thank you.