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Auto Initial Program Load Function

IP.com Disclosure Number: IPCOM000035334D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 83K

Publishing Venue

IBM

Related People

Kallestad, PR: AUTHOR [+2]

Abstract

This article describes the function to allow the user to automatically perform an Initial Program Load (IPL) of the System/36, run these start up procedures, and leave the system in a ready state for communicating in a network. This implies that the system can recover from a power outage and be brought to a usable state without jeopardizing system security and without operator intervention.

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Auto Initial Program Load Function

This article describes the function to allow the user to automatically perform an Initial Program Load (IPL) of the System/36, run these start up procedures, and leave the system in a ready state for communicating in a network. This implies that the system can recover from a power outage and be brought to a usable state without jeopardizing system security and without operator intervention.

With the Auto Initial Program Load feature, an IPL is performed with internally generated sign on data so that the operator is not required to input any data before IPL can complete. There are now two modes of IPL for the System/36. Depending on the control panel input lights, the IPL programs will either perform an Auto IPL without requiring operator intervention OR perform the traditional IPL where the system operator is able to input sign on information (currently available).

* When the security switch on the control panel is set to "Normal" mode and the input lights are zeros, the following sequence of events occurs: 1. A power- on signal is received by the System/36 Command Processor. 2. Zeros are detected in the control panel input lights. 3. The figure provides a simulation of a sign on. 4. IPL proceeds by executing the customer-defined start-up procedures called #STRTUP1 and #STRTUP2. These could contain OCL statements to restart communications to the network. 5. Initial Sign on Procedure APRPROC is executed which signs user AUTOAPR o...