Saving the system
Before you upgrade to a new i5/OS® release, you should have a current backup copy of your system.
You do not need to save your system when you have a current backup copy that can be used to recover if a failure occurs. Be sure to keep this backup copy until you save your entire system again. In the i5/OS Information Center, the topic Backing up your system contains information on how to perform your save strategy and also the steps to automatically save your entire system.
- Before you begin the process for saving the system for a recovery procedure, determine the optical or tape device for the alternate IPL.
- Save your system by using the alternate IPL device.
Tapes that are created with the Save System (SAVSYS) command cannot be used with the automatic installation process. These tapes also do not provide a complete backup.
After you begin to upgrade the Licensed Internal Code to the next release, the upgrade process must be completed. If you do not complete the upgrade and you want to return to the previous release of the operating system, initialize the disks and reload the system by using the backup tapes that were created by the GO SAVE command (Option 21) just before you began the upgrade.
Parent topic:
Preparing to upgrade or replace i5/OS software