Installation guide

• ENABLE – Power is applied to the system (all partitions). The primary
console’s ctrl/p halt function is enabled.
• RESET – This is a momentary position. Moving the switch to RESET
and then releasing it will cause a complete initialization of the system.
All secondary partitions will be immediately terminated. The primary
partition will display the normal power on self-test messages and enter
console mode.
console prompt
The prompt displayed on the console terminal of a partition to indicate the
console firmware is ready to accept commands, which has the following
appearance:
P##>>>
Where ## is the processor number on which the console firmware is
currently executing. This is normally the primary processor of the current
partition as shown in the following examples:
• For partition 0 with CPU 0:
P00>>>
• For partition 1 with CPU 4:
P04>>>
ctrl/p halt
On the primary console terminal only, holding down the control key and
typing the letter p will cause the primary processor for partition 0 to halt
and enter console mode (P00>>> prompt). The halt operation can be
disabled by setting the power switch to the SECURE position. The halt
operation is ignored on secondary partitions.
P##>>>stop N
Typing stop N at the console prompt (P##>>>) will cause processor N to
halt and enter console mode. Issuing this command on the primary console
terminal can stop any processor in any partition. For example, if the
primary processor for partition 1 is processor 4, the following command will
cause processor 4 to enter console mode:
P00>>>stop 4
P##>>>continue N
If processor N entered console mode as the result of a ctrl/p halt or
stop N command, typing continue N at the P##>>> prompt will cause
the processor to resume program execution. Foe example:
P##>>>continue 4
If only a single processor was halted, then the processor number, N, can be
omitted.
Administering Specific Hardware E–13