3.2.2 Provisioning at the operating system level
There are various methods available to install the operating system. IBM recommends that you install the operating system automatically by using the NIM Master server, because it enables you to maintain a single installation and update source, and provides the flexibility to choose between different installation methods. Keep in mind that your network environment must be defined and working correctly before installing AIX 5L automatically.
In addition, we chose to use Cluster System Manager (CSM) to manage our WebSphere LPARs because it provides a single access and control point from a systems management perspective, as well as the flexibility to grow with an enterprise.