Downloading the AIX 7.3 ISO requires a valid IBMid and an active Software Maintenance Agreement (SWMA). Because AIX is a proprietary enterprise operating system, there is no public "click-to-download" mirror like those found for Linux distributions. 1. Access the IBM ESS Portal
You can migrate directly from AIX 6.1, 7.1, or 7.2 to AIX 7.3 [5, 18]. It is highly recommended to run the pre-migration script /usr/lpp/bos/pre_migration ) found on the install media before starting [5, 18]. Hardware Requirements: download aix 7.3 iso
Once you have the legitimate ISO, here is the typical installation workflow: Downloading the AIX 7