Review what device and tape files are, as well as how both of them are used.
Device files are files that provide access to attached devices such as tapes, diskettes, printers, displays, spools, and other systems that are attached by a communications line. The device file that is described in this topic is Tape files, which allow access to data files on tape devices.
Each file type has its own set of unique characteristics that determines the use and capabilities the file can provide. This topic describes the characteristics and use of tape and device files for application programs. For more information about printer files, display files, and spooled files, refer to Printer files, Display files, and the File management topics in the iSeries™ Information Center.
When programs use a device file, a name represents the device file. That name identifies both the file description and, for some file types, the data itself. This manual helps you understand the following aspects of tape files so you can use their full capabilities: