COBOL for AIX supports input and output for sequential, relative, and indexed files with the DB2, SdU, SFS, and STL file systems, and also supports input and output for fixed-length sequential files with the RSD file system. These file systems do not exist on the host.
Line-sequential input and output is supported by the native byte stream file support of the operating system.
Sizes and values of the returned file status information can vary depending on which file system is used.
COBOL for AIX does not provide direct support for tape drives or diskette drives.
related concepts
File systems
Line-sequential file organization
related tasks
Using file status keys
Using file system status codes