TCPIPCS DUAF
Use this subcommand to display a summary of each dispatchable unit control block (DUCB). Each entry in the dispatchable unit allocation table (DUAT) points to a DUCB. The DUAT entry contains the status of the DUCB and identifies the ASID with which the DUCB is associated. If no parameters are specified, the output contains a summary of the DUAT, followed by a summary of each DUCB.
- Ab
- The DUCB has ABENDed.
- Iu
- The DUCB is in use.
- Re
- The DUCB is in resume state.
- Su
- The DUCB has been suspended.
The DUCB status might be followed by the recovery stack. There is one line for each register save area (RSA) found in the DUCB (and its DUSA extension, if present). The address of each RSA, its previous pointer, its next pointer, and the module name are shown.
A register save area displayed as RSA* indicates that the RSA is not in the active chain. If all RSAs are shown like this, the DUCB is not in use.