Chapter 4. IBM Tivoli License Compliance Manager 61
򐂰 Capability to manage complex products and support for logical partitioning
and virtualization (Node / shared pool / LPAR / virtual machines).
IBM Tivoli License Compliance Manager V2.3 relies on IBM middleware software
and uses the following software components:
򐂰 IBM DB2 Universal Database™
򐂰 IBM WebSphere Application Server
򐂰 HTTP Server (IBM HTTP Server is bundled with IBM WebSphere Application
Server.)
򐂰 HTTP Server plug-in (A plug-in for IBM HTTP Server is bundled with IBM
WebSphere Application Server.)
Refer to IBM Tivoli License Compliance Manager Planning, Installation, and
Configuration, for a detailed list of software requirements for an IBM Tivoli
License Compliance Manager V2.3 implementation.
4.3.1 ITLCM Infrastructure - Monitoring Components
IBM Tivoli License Compliance Manager V2.3 leverages a three-tiered
architecture as shown in Figure 4-2.
Figure 4-2 IBM Tivoli License Compliance Manager three-tier architecture
62 IBM Tivoli Asset Management for IT Portfolio Overview
Tier 3 - Administration Server is an application server that contains the
business logic and stores the core data for the ITLCM installation. Each Tivoli
License Compliance Manager installation has a single administration server that
runs on WebSphere Application Server and provides the following facilities:
򐂰 A DB2 repository of product, license agreement, license use, installed
software, and organization information.
򐂰 A Web user interface from which registered users can perform license
management and administration tasks and to produce historical reports of
license use and inventory information over time.
򐂰 A command-line interface that you can use to import electronic entitlements,
manage complex products, import data, and perform system management
and problem determination tasks.
򐂰 Generation of e-mails to notify administrators about relevant events that have
occurred. Users of the Web user interface have the option to receive
notifications about events that are relevant to their roles.
򐂰 The capability to reconcile license information defined on the Web user
interface to the software use information received from agents.Tivoli License
Compliance Manager provides a flexible structure that can be adapted for
large and small installations.
Tier 2 - Runtime server provides services for the clients. Each Tivoli License
Compliance Manager installation must have at least one runtime server. The
runtime server runs on WebSphere Application Server. Each runtime server
provides the following facilities:
򐂰 A DB2 repository that stores information downloaded from the administration
server to support agent monitoring tasks and information about products
uploaded from agents. Information about products to be monitored and
schedules for installed software scans is obtained from the administration
server and sent to the agents at regular, configurable intervals. Information
collected by agents about software installed and in use on monitored systems
is uploaded from agents and sent to the administration server at regular,
configurable intervals.
򐂰 Generation of e-mails to notify administrators about relevant events that have
occurred on the server or its agents.
򐂰 A command-line interface that you can use to perform system management
and problem determination tasks.
򐂰 A Web page from which you can deploy the agents to computers that are to
be monitored.
Tier 1 - Agents that runs on the end-user server or workstation and performs the
following functions:
Chapter 4. IBM Tivoli License Compliance Manager 63
򐂰 Performs an inventory of the software installed on the computer and forwards
this information to the runtime server.
򐂰 Identifies software products that are active to build up information about the
use of monitored software products on the monitored computer. The agent
stores this information in its cache and uploads it to the runtime server at
regular, configurable intervals.
򐂰 Collects information about software that is running on the monitored computer
that is not included in the catalog of software products and adds it to a list of
potential signatures. Using the catalog manager, you can process the
potential signatures and link them to new or existing products.
Note: Agent functions differ on i5/OS computers. Only IBM products that have
been instrumented for license tracking and J2EE™ applications can be
monitored. No scan is needed to identify which products need to be
monitored.

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