Cloud Migration
Per-application disposition, sequencing and the capability change underneath.
3 to work through
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advanced
A lift-and-shift migration produced a cloud bill 2.5 times the data-centre cost it replaced. What do you examine first and what is the fastest meaningful reduction?
3 min answer -
advanced
A travel platform must migrate a large legacy booking system to cloud services without a big-bang cutover. Design the migration using a strangler approach, and identify what makes data the hard part.
2 min answer -
advanced
You are asked to lead a migration of 300 applications to cloud. What happens in the first ninety days?
2 min answer
3 terms in this topic
Application Discovery
Establishing what applications exist, what they depend on, who owns them and whether anyone uses them — the step whose absence makes every later step…
practiceCloud Migration
Moving workloads to the cloud — where the strategy per workload matters more than the programme, and where lift-and-shift produces the bill that disc…
practiceMigration Wave
A batch of applications migrated together, sequenced so that dependencies move in a workable order and each wave delivers learning for the next.
1 artifact you would hand over
Neighbouring topics
Cloud Architecture
General material on designing for cloud platforms.
Compute Models
Instances, containers and functions, and what each is priced and shaped for.
Cloud Storage
Object, block and file storage, and the access patterns each suits.
Cloud Databases
Managed relational, key-value, document and analytical services.
Containers
Images, registries, immutability and the deployment model they enable.
Kubernetes
The reconciliation loop, and whether the workload needs what it provides.
Serverless
Scale to zero, per-request billing, cold starts and connection limits.
Autoscaling
Signals, delays and bounds — and the maximum that caps a runaway bill.
Load Balancing
Distributing traffic, health checking, and removing failures from rotation.
Multi-Region Architecture
Surviving a region, and the data consistency price of doing so.
Availability Zones
The unit of correlated physical failure, and what zones do not protect against.
Disaster Recovery
Backup-restore, pilot light, warm standby and active-active postures.
Backup Strategies
Scope, immutability, separation, and the restore drill that makes it real.
Infrastructure as Code
Declarative infrastructure, drift, state files and rebuild-from-empty.
Landing Zones
A governed foundation of accounts, network, identity and guardrails.
Managed Services
Which operational responsibilities actually transfer, and which do not.
Multi-Cloud
Best-of-breed, portfolio and portable — three very different costs.
Edge Computing
Moving compute towards the user, and what cannot follow it.
Cloud Governance
Preventive policy, tagging, quotas and cost and security guardrails.