DFSORT runs under control of your z/OS operating system and must be initiated according to the appropriate conventions.

Additionally, DFSORT runs under z/OS when it is running as a guest under z/VM®.

DFSORT is compatible with all of the IBM processors supported by z/OS. In addition to any device supported by z/OS for program residence, DFSORT also operates with any device QSAM or VSAM uses for input or output.