Chapter 5. Unattended CID
Migration
Chapter 5. Unattended CID
Migration
In a complex environment with a large number of servers and hundreds, or even thousands, of clients, it quickly becomes very time consuming if systems must be migrated manually. Automating the procedures makes the entire process easier to handle.
The method used to achieve this is a concept called Configuration, Installation, and Distribution (CID).
There are other reasons to use CID besides time and resource optimization. Imagine that a machine you have to update is not physically accessible, or that the migration must be completed overnight when no one is present to interact with the installation, such as to insert diskettes, click on buttons, and so on.
This book focuses on migration. However, most of the information contained in this chapter can also be used during a pristine installation. Where it cannot, the differences are highlighted.
The main difference between a pristine installation and a migration is whether a format of the hard disk is done. A pristine installation assumes that there is no existing valid operating system already on the target machine. Some disk partitioning is also likely in pristine installation. In addition, the way the installation is handled requires certain additional procedures to ensure everything completes successfully.
One approach to migration, outlined in Chapter 6. Migrating Hardware, does, in fact, involve a pristine installation on a new machine.
This chapter provides the necessary information required to complete an unattended migration, or installation, to OS/2 Warp Server for e-business. For the sake of clarity, the installation is discussed initially from a migration viewpoint. At each stage, we highlight whether there are specific and different considerations that need to be applied to a pristine installation.
5.2 What is CID?