Enterprise Cloud Migration & Modernization
What is a Cloud Readiness Assessment?
A Cloud Readiness Assessment is a structured pre-migration analysis that categorises every workload, models the total cost of ownership, evaluates compliance and security posture, and produces a prioritised migration roadmap. TantranZm assesses each application against the industry-standard 6Rs framework:
- Rehost:Lift-and-shift to the cloud with minimal change.
- Replatform:Lift-and-optimise — e.g. move to managed databases.
- Refactor / Re-architect:Redesign for cloud-native scalability.
- Repurchase:Move to a SaaS alternative.
- Retain:Keep on-premise where migration adds no value.
- Retire:Decommission workloads no longer needed.
What is FinOps?
FinOps (Cloud Financial Operations) is the practice of bringing financial accountability to cloud spend through resource right-sizing, reserved-instance strategy, tagging, and continuous cost monitoring — typically delivering 20–40% cloud cost reduction. TantranZm embeds FinOps governance into every migration so cost control is built in from day one, not retrofitted later.
Our Cloud Migration Capabilities
End-to-end cloud migration services for enterprise workloads
Cloud Readiness Assessment
Structured assessment of application portfolios, infrastructure, data, and security posture. Delivers a cloud migration roadmap with workload prioritisation and risk classification.
AWS Migration & Modernisation
End-to-end migration to AWS — EC2, RDS, S3, EKS, Lambda, and more. Covering lift-and-shift, replatform, and refactor approaches with AWS Well-Architected Framework compliance.
Azure Migration & Integration
Microsoft Azure migration including Azure VMs, SQL Managed Instances, AKS, and App Services. Integration with Microsoft 365, Active Directory, and enterprise security frameworks.
Oracle Cloud Infrastructure (OCI)
OCI migration for Oracle workloads — Fusion SaaS integrations, Oracle databases, and Exadata Cloud Service. Optimised for Oracle-to-Oracle migration paths with minimal disruption.
Cloud-Native Application Re-architecture
Refactoring legacy monolithic applications into cloud-native architectures — microservices, containerisation (Docker/Kubernetes), serverless, and modern CI/CD pipeline design.
Cloud Governance & FinOps
Cloud cost management frameworks, tagging strategies, reserved instance planning, and right-sizing recommendations. Ensuring cloud spend is governed, visible, and aligned to business value.
Migration Process
Phase 1: Discovery & Cloud Assessment
2-4 Weeks- Application portfolio discovery and workload dependency mapping
- Infrastructure and security posture assessment
- Cloud provider selection and commercial evaluation
- Migration wave planning and risk classification
Phase 2: Migration Architecture Design
3-6 Weeks- Target-state cloud architecture design per workload
- Network, security, and identity framework design
- Data migration strategy and compliance review
- Landing zone build and CI/CD pipeline design
Phase 3: Phased Migration Execution
8-24 Weeks- Wave-by-wave migration with defined rollback procedures
- Application testing, performance validation, and cutover management
- Integration re-pointing and third-party system updates
- Security hardening and compliance verification
Phase 4: Cloud Operations Handover
4-6 Weeks- Cloud operations runbook and governance documentation
- FinOps framework activation and cost baseline establishment
- Team training and cloud operating model handover
- Hypercare support and stabilisation period
Choosing the Right Migration Approach
Lift-and-Shift
Rehost
Move workloads to the cloud with minimal changes. Fastest migration path with lower upfront cost — ideal for reducing data centre footprint quickly.
BEST FOR
Legacy applications where speed to cloud matters more than optimisation
Replatform
Lift, Tinker & Shift
Migrate with selective optimisations — managed databases, auto-scaling, containerisation — without full re-architecture. Balances speed and cloud benefit.
BEST FOR
Applications that would benefit from managed services with moderate effort
Refactor / Re-architect
Modernise
Fully redesign applications as cloud-native services. Microservices, serverless, and modern CI/CD. Highest effort but maximum cloud performance, resilience, and cost efficiency.
BEST FOR
Business-critical applications requiring cloud-native scale and agility
