Coupling facility control code commands

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Coupling facility control code does provide a limited set of hardware operator controls unique to the coupling facility LP. These controls are available from the Operating System Messages window. From this window, you can enter the HELP command to display coupling facility control code command syntax.

Coupling facility control code provides the following commands for use in the coupling facility LP:

  • CONFIGURE (configure coupling facility channel paths online or offline)
  • CFDUMP (force a non-disruptive dump of the CF)
  • CP (configure a central processor online or offline)
  • DISPLAY (display coupling facility resource information)
  • DYNDISP (See Dynamic Coupling Facility Dispatching and Coupling Thin Interrupts)
  • HELP (display coupling facility control code command syntax)
  • NDDUMP (sets or modifies nondisruptive dumping options)
  • MODE (define coupling facility volatility mode)
  • SHUTDOWN (shutdown coupling facility operation)
  • TIMEZONE (sets timezone offset from Greenwich Mean Time for a coupling facility)
  • TRACE (sets or modifies tracing options).
Notes:
  1. Support for the CP and HELP coupling facility control code commands is available on the z17.
  2. The settings established using DYNDISP, MODE and TIMEZONE commands are recorded in the policy file for the coupling facility. As a result, all values are persistent across resets, deactivations, and reactivations.