Demystifying NetApp Adaptive QoS in OpenStack Genestack
Configuring multi-tenant Quality of Service (QoS) for enterprise storage in OpenStack sounds straightforward on paper: define standard and high-performance tiers, specify IOPS per gigabyte, and let the storage backend handle enforcement. In practice, our journey implementing NetApp ONTAP Adaptive QoS (AQoS) across Rackspace OpenStack Flex and Genestack production environments revealed sharp discrepancies between early published deployment specifications and storage reality.