In some embodiments, a multiple-data-storage-devices cartridge can implement a method of writing data via a data range application programming interface (“API”). The method can include: receiving a write request from a requester device, wherein the write request is a direct, broadcast or multicast, or fanout message and includes a size indication for a contiguous range of data; responsive to receiving the write request, sending a response message to the requester device indicating an intent to store the contiguous range of data; receiving the contiguous range of data from the requester device; powering on a target data storage device from amongst data storage devices within the cartridge while keeping at least another data storage device in the cartridge powered off; and writing the contiguous range of data to the target data storage device.