BRMS requires that the device descriptions for the library and its device resources exist on the IBM i platform. Refer to the Storage solutions topic in the IBM i Information Center for information about how to create these device descriptions. To find the topic in the information center, expand i5/OS™ information->Systems management->Storage solutions. After you set up the media library and vary it on, you use the INZBRM *DEVICE command to update BRMS with all the proper defaults for the new devices.