Storage QOS maximum throughput limits can be defined in terms of:

Specifying IOPS only is incomplete because MB/s is also a valid and independently usable unit for defining Storage QoS maximum throughput limits.

Specifying MB/s only is incomplete because IOPS is also a valid and independently usable unit for defining Storage QoS maximum throughput limits.

ONTAP Storage QoS allows defining a maximum throughput limit using either IOPS (I/O operations per second) or MB/s (megabytes per second) as independent options. Administrators choose the unit that best fits the workload - IOPS limits control operation frequency while MB/s limits control data transfer volume. Each policy limit uses one unit type, giving flexibility without requiring both simultaneously.

The phrasing 'IOPS and MB/s' implies both units must be configured together simultaneously, but a single maximum throughput limit is defined with one unit or the other, not both at once.