File System Management (File Pool and Minidisk I/O) Routines

This section describes general routines for manipulating data stored in CMS file pools or on minidisks. These file system management routines are available to programmers writing applications for the CMS environment. The routines listed in this section adhere to the syntax conventions described later in this chapter. Many of these routines operate on both file pool and minidisk files.

The routines that operate on file pool data are primarily intended for manipulating CMS Shared File System (SFS) files and directories. However, many of these routines also provide limited support for manipulating OpenExtensions Byte File System (BFS) files and directories. This support is primarily intended for file pool administration tasks and system-managed storage. The primary CSL interface for manipulating BFS files and directories is the set of routines described in the z/VM: OpenExtensions Callable Services Reference.

For more information about file system management, see the z/VM: CMS Application Development Guide. For information about SFS and related topics, see z/VM: CMS File Pool Planning, Administration, and Operation. For information about BFS, see the z/VM: OpenExtensions User's Guide.