The system keyword MTLSHARE enables MTL-defined devices to be treated as stand-alone devices. This keyword can be specified to either override the IODF MTL definition or without a shared IODF, to indicate that stand-alone devices are being used elsewhere as manual tape library devices. Usage of this keyword tells the system that the cartridge loaders are to be owned by the systems that recognize and treat the devices as MTL resident library devices. This prevents MTL resident scratch volumes from being indexed and incorrectly used by the stand-alone systems. The MTLSHARE keyword (if used) must be specified in the LOADxx member of SYS1.IPLPARM or SYS1.PARMLIB. With a shared SCDS, the manual tape library should only be enabled on those systems that are using the devices in the context of a manual tape library.