Cloud Infrastructure

What cloud platform is right for my workload?

Start with the workload

Do not start with a cloud brand. Start with the workload, because each one brings its own operating system, licensing, storage and support demands.

• IBM i, AS400 or iSeries
• AIX
• SAP or Oracle
• Windows and Linux
• VMware estates
• Backup and disaster recovery
• Analytics and web applications

Those are not variations on one decision. They are separate decisions that happen to share a word.

IBM i and AIX need Power-aware cloud

If the workload runs on IBM i or AIX, you need a cloud option that understands IBM Power. IBM Power Virtual Server supports AIX, IBM i, and Linux operating systems, and IBM's migration documentation makes support levels part of the planning conversation. That is a different decision from moving a standard web application to commodity cloud.

Use public cloud where it fits

AWS, Azure and Google Cloud are genuinely excellent for a long list of work.

• Web applications
• Analytics and modern data services
• Collaboration
• Backup targets
• Anything built cloud-native

They are rarely the simple answer for IBM i, AIX, an older ERP, or a latency-sensitive application with unusual device and licensing dependencies. That is not a knock on hyperscale cloud. It is a different problem.

Managed hosting can be the practical answer

Sometimes the right cloud option is not hyperscale cloud at all.

• Managed hosting
• IBM Power hosting
• Private cloud
• Disaster recovery only
• A provider who simply runs the system for you

When the business wants less infrastructure burden, who carries the responsibility matters more than the logo on the platform.

How do I migrate from on-premise to cloud?

Inventory before migration

A cloud migration starts with an inventory. A weak inventory produces a weak plan, every time.

• Servers and operating systems
• Applications and databases
• Storage and backups
• Integrations
• Users and printers
• Scheduled jobs
• Security rules and licensing
• Anything already unsupported

That last line is the one that changes budgets. Find it before a provider does.

Confirm supported operating system levels

For IBM Power Virtual Server migrations, IBM documentation calls out supported AIX and IBM i levels as part of the migration plan. If the current system is too old, you may need an operating system upgrade before the cloud move. That can change budget, timeline, testing, and risk.

Plan data movement and cutover

Ask the five cutover questions early, while the answers can still change the plan.

• How the data moves
• How long the final sync takes
• Where backups live during the move
• How users connect afterwards
• What rollback actually looks like

Migration is not finished when the server boots. It is finished when the application runs, users can work, backups are valid and somebody owns support.

Test with the people who use the system

Technical testing is not enough. The people who use the system every day have to confirm it still works the way their job needs it to.

• Orders
• Reports
• Integrations
• Printers
• Batch jobs and approvals
• The daily workflow end to end

A technically perfect migration still fails if nobody tested the business process.

What does a hybrid cloud architecture look like for my industry?

Hybrid means shared responsibility

Hybrid cloud usually means some systems stay put, some move, and some services bridge both. The design is only as good as the ownership behind it.

• Security
• Backups
• Monitoring
• Network
• Identity
• Data movement
• Application support

If any of those has no named owner, that is the one that will fail first.

Regulated workloads need control points

A regulated industry turns hybrid design into a documentation exercise as much as a technical one. Ask the five questions an auditor will ask.

• Where the data physically lives
• How it is encrypted
• How access is logged
• How recovery is tested
• Who can prove all of that on the day

That applies whether the rules come from compliance, audit, data residency, privacy or retention.

Latency decides where systems live

Some applications move easily. Others are quietly anchored to something physically close to them.

• Nearby databases and file shares
• Printers
• Shop-floor systems
• EDI partners
• Low-latency integrations

Map the dependencies before deciding what moves. Distance is the constraint people forget to check.

Disaster recovery is often the first hybrid use case

When a full migration feels too risky, start somewhere that cannot take production down.

• Disaster recovery
• Test environments
• Development capacity
• Backup targets
• Short-term hosted capacity

You get real cloud value and real operational experience without betting the production estate on the first attempt.

How do I control cloud costs over time?

Cloud cost is more than compute

A cheap instance price does not make a cheap environment. The bill has far more lines than compute.

• Compute
• Storage and backup
• Network, including data transfer
• Software licensing
• Support and monitoring
• Security
• Migration labor
• Managed services

Compare full environments, not instance prices.

Right-size before and after migration

Do not copy your on-premises assumptions into cloud. Right-size the starting point, then review it once real workloads have run for a month. Waste collects in predictable places.

• Oversized compute
• Storage nobody uses
• Duplicate backups
• Idle test systems
• Services with no owner

Put ownership on every service

Every cloud service should have an owner, purpose, budget expectation, and review cadence. If nobody owns it, nobody will shut it down, tune it, or explain why the bill changed.

Compare cost to risk removed

Cloud can land above or below the old environment once you count everything it replaces.

• Support contracts
• Internal labor
• Uptime and backup
• Facilities
• The next hardware refresh

Compare it against the risk and work it removes, not against last year's server invoice.