What Is IBM Cloud Migration?
IBM Cloud migration is the process of moving applications, data, and infrastructure from on-premises servers or from another cloud provider onto IBM’s cloud platform. IBM Cloud combines Infrastructure as a Service (IaaS) and Platform as a Service (PaaS), giving businesses room to run everything from legacy enterprise systems to modern containerized applications on the same platform.
Migrating On-Premises IBM Systems to the Cloud
For businesses still running Power Systems hardware on-site, migration involves more than moving data. It means planning around infrastructure that’s often been running uninterrupted for years. A few things look different when the starting point is on-premises rather than another cloud:
Hardware lifecycle: On-premises Power Systems hardware has a finite refresh cycle, and migration timing is often driven as much by an aging hardware refresh deadline as by a cloud strategy decision. Knowing where your current hardware sits in that lifecycle should shape your migration timeline, not the other way around.
Hybrid operation: Few organizations can cut over on-premises systems to the cloud in a single event. Most run a hybrid state with some workloads on-premises, some in IBM Cloud for a transition period while dependencies are validated and cutover is staged in phases.
Network connectivity: Unlike a cloud-to-cloud migration, an on-premises environment has no existing link to IBM Cloud. A Direct Link connection routed first into the IBM Cloud Classic Environment, then into the Power Systems Virtual Server environment specifically, has to be established and tested before any workload can move.
Decommissioning plan: Once workloads are confirmed stable in IBM Cloud, on-premises hardware still needs a formal decommissioning and data destruction process that is often overlooked until after cutover, when it becomes an unplanned cost and compliance gap.
Why Businesses Choose IBM Cloud for Migration
Cost savings are usually the entry point into the conversation, but they are rarely the deciding factor on their own. Organizations choose IBM Cloud migration for a combination of reasons:
Applications built on IBM i, AIX, or Db2 can move to PowerVS without a costly rewrite, a major factor for finance, manufacturing, and government organizations running mission-critical systems on Power.
Eliminating hardware refresh costs: On-premises Power Systems hardware has a finite lifecycle. Migrating removes the recurring capital expense of refreshing physical infrastructure.
Elastic scalability: Compute and storage scale with actual demand instead of being sized for peak load year-round.
Compliance-ready infrastructure: IBM Cloud data centers are built to meet regulatory requirements common in finance, healthcare, and government sectors.
Hybrid flexibility:Through Red Hat OpenShift integration, businesses can run traditional Power workloads alongside modern containerized applications under one operational model, rather than managing two disconnected environments.
Common IBM Cloud Migration Strategies
Not every application should migrate the same way, and treating migration as a single uniform event is one of the most common planning mistakes. Workloads generally fall into one of four strategies:
Rehost (“lift and shift”): The application moves with minimal changes to code or configuration. This is the standard approach for stable IBM i and AIX workloads moving to PowerVS, since it preserves what’s already running reliably.
Replatform: The application moves with targeted optimizations such as shifting a database to a managed cloud service without altering the core architecture.
Refactor: The application is redesigned to take advantage of cloud-native capabilities. This is the most resource-intensive path and makes sense primarily for workloads expected to scale significantly or that are already due for modernization.
Retire or retain: Not every system needs to move. A proper assessment typically identifies redundant applications that can be decommissioned, along with workloads better left on-premises for the time being.
Sorting applications correctly into these categories rather than defaulting everything to rehost is what keeps a migration on budget and on schedule.
IBM Cloud Migration Process:
A well-run IBM Cloud migration generally follows five phases:
1. Discovery and Assessment: Every application, dependency, and data volume is catalogued before any migration decisions are made. This step determines realistic cost and timeline estimates; skipping it is the most common reason migrations run over budget.
2. Strategy and Roadmap: Each workload is matched to a migration strategy and sequenced to minimize disruption to business operations, with priority given to systems where downtime carries the highest cost.
3. Connectivity and Architecture Setup: Secure connections between the on-premises environment and IBM Cloud are established typically through Direct Link connections or VPNs, with Power Systems Virtual Server environments requiring their own dedicated connection layer.
4. Data Migration and Cutover: Data moves using methods appropriate to its volume: standard transfer tools for smaller data sets, or physical Mass Data Migration appliances for enterprise-scale volumes where network transfer isn’t practical.
5. Post-Migration Optimization: Once live, the environment is monitored, right-sized, and tuned for performance and cost migration is not considered complete at cutover, but once the environment is stable and optimized.
What to Look for in an IBM Cloud Migration Partner
Because IBM i, AIX, and Power Systems migrations require specialized expertise, most organizations work with an IBM Business Partner rather than managing the migration internally. When evaluating a partner, prioritize:
Proven Power Systems experience, specifically general cloud migration experience, does not guarantee familiarity with IBM i or AIX environments.
A genuine discovery process one that assesses your actual applications, not a templated migration plan applied to every client.
Established backup and disaster recovery practices for the target environment, confirmed before migration, not addressed afterward.
Transparent pricing with no hidden costs tied to data egress, compute overages, or “optimization” fees added post-migration.
Post-migration support included as part of the engagement, not sold separately once the migration is technically complete.
Why Choose Star Systems for IBM Cloud Migration
Star Systems helps businesses modernize and optimize their IBM Cloud infrastructure with confidence. As an IBM Gold Partner, we bring proven expertise and 200+ successful IBM Cloud migration projects delivered worldwide. Our team helps organizations plan, migrate, and manage their IBM Cloud environments with a focus on performance, security, scalability, and business continuity.
What that experience translates to in practice:
A discovery process built on 200+ real migrations, not a template adapted for the first time to your environment.
IBM-validated Power Systems expertise, backed by Gold Partner status rather than self-reported experience.
Global delivery capability, with migration teams that have supported organizations across multiple regions and regulatory environments.
A track record with the hardest workloads: long-running IBM i and AIX systems that many cloud migration providers won’t take on with confidence.
