Communicator e3000 MPE/iX Release 7.5 (Software Release C.75.00) (30216-90336)

Chapter 5

Technical Articles

SHUTDOWN — New CI Command

by S Shashikala, Commercial Systems Division

Enhancements Summary

Presently MPE/iX supports the =SHUTDOWN with console interrupt [CTRL] [A]. The =SHUTDOWN

command performs an implicit =LOGOFF of all sessions, including the session logged at the system console.

The CPU halts, and console interrupt

[CTRL] [A] is ineffective.

The objective of this enhancement is to provide the shutdown mechanism with a reboot option in the

command level similar to HP-UX operating system.

This enhancement provides a :SHUTDOWN command on the CI prompt, with a RESTART option which

shuts down the system completely and reboots automatically.

Enhancement

:SHUTDOWN SYSTEM [;RESTART]

Syntax

:SHUTDOWN SYSTEM will shutdown the system completely.

:SHUTDOWN SYSTEM;RESTART will shutdown the system completely and reboot the system automatically.

Control will result to the ISL> prompt.

This command can be issued from a session, job, program, or in BREAK. Pressing

[Break] has no effect on this

command. It can be issued only from the console unless it is distributed to users with the ALLOW command.

Parameters

SYSTEM Specifies that the entire system should be shut down completely.

RESTART Specifies that the system should be restarted after the shut down is complete.

Operation and Use of New Command

The MPE/iX operating system is shutdown in an orderly manner. :SHUTDOWN performs the same function as

=SHUTDOWN, but may be entered from the CI in a job, session, or script. The :SHUTDOWN command supports

the RESTART option.OP capability is required for this command.

The :SHUTDOWN performs an implicit =LOGOFF of all sessions, including the session issuing the command. All

system processes are stopped in an orderly fashion. This includes the completion of all pending system

activity and any processing necessary to ensure that the integrity of all system tables and directories is

maintained. Once these procedures are complete, SHUT is displayed on the console, the CPU halts, and

console interrupt

[CTRL] [A] is ineffective.

Device configuration changes that were made after the preceding load (UP, DOWN, ACCEPT, REFUSE and

spooling commands) are not retained. Configuration changes made during coldload are permanently

recorded and retained until the next tape coldload. Newly assigned or released global Resource Identification

Numbers (RINs) are permanently recorded.