Working with DML repositories

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A Definitive Media Library (DML) is a secure compound in which the definitive, authorized versions of software package configuration items (CIs) are stored and protected. A DML consists of one or more software libraries or file-storage areas, referred to as repositories. You use the Definitive Media Library application to create, edit, and manage DML repositories.

About this task

The DML contains master copies of software you can install. Each software image contains binaries and installation scripts; often, a single software image consists of multiple software products. You can manage software images manually, using the DML application, or, if you have integration modules (IMs) installed for IBM® Tivoli® Provisioning Manager or IBM Tivoli Configuration Manager, or both, you can discover the software images that are stored on these operational management products (OMPs).

Either of these OMPs enables you to deploy a software image to a set of targets. However, the process control provided by Release Process Manager adds auditable steps like approvals; in addition, the discovery process discovers both the systems you deploy to and the configuration items (CIs) in your environment. This product helps you identify the impacts of your distribution and adds significant audit, compliance, and control capabilities.

After you create a repository, you can specify software images that are associated with the repository for distribution. A repository that has an associated operational management product (OMP) can be used as a source for automated software distribution tasks; repositories that are not associated with an OMP can be used as store rooms from which you can select packages for manual distribution tasks.