1. A computer program product for facilitating a plurality of heterogeneous hosts to use a range of priority values, the computer program product comprising: a computer readable storage medium having program instructions embodied therewith, the program instructions readable by a processing circuit to cause the processing circuit to perform a method comprising: retrieving a plurality of priority ranges from a plurality of network forwarding elements shared by a plurality of heterogeneous hosts, the network forwarding elements providing access to a set of storage devices that stores data for the plurality of heterogeneous hosts; generating a universal priority range from the plurality of priority ranges; mapping a plurality of workloads performed by the computer to priority values in the universal priority range; and sending the universal priority range to at least one host of the heterogeneous hosts; wherein the host maps a plurality of workloads performed by the host to the priority values in the universal priority range; and wherein the network forwarding elements forward data for the workloads between the hosts and the storage devices based on the priority values mapped to the workloads.