The following example shows how an operator can control problem
determination mode for the system console. The example illustrates
how the system handles the console attribute definition ROUTCODE for
the system console SYSCON1 defined in CONSOLxx as follows:
CONSOLE DEVNUM(SYSCONS) NAME(SYSCON1)
ROUTCODE(1-5)
The operator initializes the system from the system console SYSCON1.
After initialization, the CONSOLxx defaults are in effect for the
system console. In this example, the following default value applies:
- Normal operations
The operator receives a minimum set
of messages on the system console and monitors normal system operations
from an MCS console.
The MCS console fails on the system.
The operator enters VARY CN(*),ACTIVATE on SYSCON1 to place the console
in problem determination mode for the first time during this IPL.
- Problem determination mode
The system console is now
in problem determination mode. The system uses the value for ROUTCODE
defined in CONSOLxx:
Along with other messages it can receive, the system
console receives messages defined by routing codes 1 through 5.
To receive more information about the problem, the operator decides
to change the routing codes on the system console.
- Problem determination mode
Without having to re-IPL,
the operator issues the VARY command to change ROUTCODE to ALL. The
system console can receive messages with all routing codes. The operator
is able to restore the MCS console and continue normal operations.
The operator enters VARY CN(SYSCON1),DEACTIVATE
on any console to deactivate problem determination mode.
- Normal operations
The system console again receives
a minimum set of messages. The CONSOLxx default for ROUTCODE is in
effect:
The MCS console fails again on the system. The operator reissues
VARY CN(*),ACTIVATE on SYSCON1 for the second time during this IPL.
- Problem determination mode
The system console is again
in problem determination mode. In this example, the system uses the
system console attribute for ROUTCODE based on when the operator last
changed the routing code value:
Along with other messages it can receive, the system
console receives messages defined by all routing codes.
The
operator restores the MCS console and issues VARY CN(SYSCON1) DEACTIVATE
on the system console to deactivate problem determination mode.
- Normal operations
The operator continues normal operations
from the MCS console.