A storage server includes an interface to a storage over fabric network, a plurality of input/output (I/O) queues (IOQs), a plurality of non-volatile data storage devices to store data received from a host computer system over the interface to the storage over fabric network, and a processor to set a maximum number of the IOQs to be provisioned for the host computer system and a maximum depth of the IOQs to be provisioned for the host computer system.