Open systems file system (QOpenSys)

The QOpenSys file system is compatible with open system standards based on UNIX, such as POSIX and X/Open Portability Guide (XPG). Like the "root" (/) file system, this file system takes advantage of the stream file and directory support that is provided by the integrated file system.

In addition, it:

  • Is accessed through a hierarchical directory structure similar to UNIX systems.
  • Is optimized for stream file input and output.
  • Supports multiple hard links and symbolic links.
  • Supports case-sensitive names.
  • Supports local sockets.
  • Supports threadsafe APIs.
  • Supports *FIFO objects.
  • Supports the journaling of object changes.
  • Supports the scanning of objects using the integrated file system scan-related exit points.

The QOpenSys file system has the same characteristics as the "root" (/) file system, except it is case sensitive to enable support for UNIX-based open systems standards.

Accessing QOpenSys

QOpenSys can be accessed through the integrated file system interface using either the IBM® i file server or the integrated file system commands, user displays, and APIs.

Parent topic: File systems