If a no-paths or intervention-required condition is detected, MSGIOS002A or MSGIOS003A may be issued during IOS-enabled interrupt processing. If the error is on a paging device that is not currently enabled for hyperswap, IOS-enabled interrupt processing will not issue the IOS002A or IOS003A message, but will invoke the Disabled Console Communication Facility (DCCF) to issue a IOS115A WTOR. DCCF prevents all other work from running on the system until the operator replies to the WTOR. Loading a non-restartable wait state is preferable to issuing the IOS115A WTOR message.
The DCCF keyword is used to specify whether IOS-enabled interrupt processing will load a non-restartable wait state instead of issuing the IOS115A WTOR if a no-paths or intervention-required condition occurs on a paging device.
