Platform IPL sequence

This topic provides information about the steps for initial program load.

The IPL consists of the following steps:
  1. Service processor's performing power-on tests and loading the system processor
  2. Platform Licensed Internal Code initialization
  3. If the system is partitioned, platform Licensed Internal Code loads the partition's SLIC code
  4. Licensed Internal Code (system) initialization
  5. Installing or starting the operating system program

For information on IPL status SRCs, see IPL status SRCs.




Last updated: Wed, June 19, 2019