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White Paper . ILMT Deployment

The ILMT Deployment Playbook.

A 32 page operational playbook for deploying the IBM License Metric Tool in production. Architecture, scanner agents, the bundle file lifecycle, quarterly Audit Snapshot reporting, and the governance model that keeps sub capacity coverage defensible under audit.

Pages
32
Time to read
45 min
Updated
Q2 2026

What is inside.

  • The ILMT reference architecture for x86, Power, and container deployments.
  • The BigFix infrastructure dependency and how to scope it for ILMT only use.
  • The Db2 backend sizing for small, mid market, and Fortune 500 estates.
  • The bundle file lifecycle and the quarterly validation step that most teams miss.
  • Scanner agent rollout, exception handling, and the products that require a separate scan.
  • The Audit Snapshot generation, retention, and reconciliation workflow.
  • The IBM License Service for Cloud Pak workloads and the boundary with ILMT.
  • The operational governance model that survives team turnover and architecture changes.

Who this is for.

  • The SAM lead operationally accountable for IBM sub capacity reporting.
  • The IBM Infrastructure team owning the ILMT and BigFix environment.
  • The Audit Defense lead who needs to produce 24 months of Audit Snapshot reports.
  • The Cloud Platform team integrating IBM License Service into OpenShift.
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Independence statement. IBM Licensing Experts is an independent advisory firm. We are not an IBM Business Partner, reseller, or affiliate. We have no resell margin tied to our recommendations. This guide reflects our reading of IBM published terms and current customer practice. Read more on why independence matters.
Table of contents

The 8 chapters in this guide.

1. Why ILMT matters

The contractual basis for ILMT under the Sub Capacity Licensing Terms and the audit consequences of a coverage gap.

2. The reference architecture

The Db2 backend, the WebSphere runtime, the BigFix infrastructure, and the scanner agents on each in scope endpoint.

3. Sizing the deployment

Estate inventory, server count thresholds, backend sizing, and the network bandwidth planning.

4. Scanner rollout

The phased rollout, the exception handling, and the products that require separate discovery scans.

5. The bundle file lifecycle

Quarterly download, validation, deployment, and the audit defensible documentation trail.

6. The Audit Snapshot

Generation cadence, retention requirements, reconciliation against entitlement, and the controlled archive.

7. Containers and Cloud Pak

The IBM License Service running on OpenShift, the boundary with ILMT, and the VPC metric basis.

8. Operational governance

Ownership, cadence, escalation, and the documentary trail that survives audit scrutiny.

Related expertise

Where this guide connects.

ILMT is the operational backbone of the entire sub capacity programme. The work on this page connects directly to sub capacity, ILMT, PVU optimization, and Passport Advantage. For container workloads the work shifts to Cloud Paks and Red Hat. For audit defence, see audit defense.

Related white papers

The connected papers in the series.

IBM Sub Capacity Licensing Guide

The 40 page enterprise guide to IBM sub capacity licensing and the ILMT obligation.

Read the guide

PVU Optimization Strategies

Reduce PVU exposure through architecture and workload placement.

Read the guide

IBM Audit Defense Playbook

The end to end audit defense engagement structure.

Read the guide