Preparing the system for i5/OS software upgrade or replacement

 

To prepare the system for software installation, review and perform the preparation tasks that pertain to your system.

• Reviewing software PTF (fix) requirements
  Before you begin the i5/OS^® installation process, make sure that your system is ready by reviewing your requirements for program temporary fixes (PTFs).

• Working with critical system values before you install software
  System values are IBM-supplied objects that can be modified from their shipped value to tailor certain aspects of the i5/OS operating system to your environment. The software installation program will overlay these objects on your system with values that are supplied on the installation media.

• Verifying the integrity of user-modified system objects
  When you replace your software with the new i5/OS release, the system keeps changes you made to some IBM-supplied objects.

• Ensuring two-phase commit integrity
  Complete or cancel all pending resynchronizations of commitment control definitions before you replace your i5/OS software.

• Minimizing software installation time
  These actions can minimize the time required to install your i5/OS software.

• Gathering performance data for benchmark
  Establish system benchmarks before you install a new version of the i5/OS operating system or make a major system configuration change such as adding a new software application.

 

Parent topic:

Preparing to upgrade or replace i5/OS software