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Lift & Shift · Replatform · Refactor · SQL · VMware · Oracle · App Service

Azure Migration
& Modernisation Services

Moving to Azure requires choosing which workloads to rehost, replatform, and refactor — and delivering each pattern with the right tooling, testing, and cutover approach. eAppSys delivers end-to-end Azure migration across all workload types.

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Azure Migration & Modernisation

Azure Migration & Modernisation — Service Areas

eAppSys provides end-to-end Azure Migration & Modernisation Services across six core areas, covering migration assessment, IaaS, PaaS, cloud-native modernisation, Oracle workloads, and post-migration operations.

Migration Assessment

  • Azure Migrate discovery — agentless server and VM discovery
  • Application dependency mapping — identifying tightly-coupled workloads
  • Migration wave planning — sequenced by dependency, risk, and priority
  • Migration approach per workload — rehost, replatform, refactor, retire
  • TCO and ROI modelling per workload
  • Business case and migration readiness report

IaaS — Lift & Shift

  • Windows Server VM migration to Azure IaaS — Azure Migrate, Site Recovery
  • Linux VM migration — all major distributions supported
  • SQL Server to Azure VM (IaaS) — preserving full SQL Server instance
  • Azure VMware Solution — VMware estate moved without refactoring
  • Storage migration — Azure File Sync, Azure Storage Mover
  • DR to Azure — Azure Site Recovery for on-premises replication

PaaS — Replatform

  • SQL Server to Azure SQL Managed Instance — near-100% compatibility
  • SQL Server to Azure SQL Database — serverless or provisioned
  • Web applications to Azure App Service — .NET, Java, Node.js, Python
  • Containerisation — Dockerising for Container Apps or AKS
  • Oracle Database to Azure VM or Azure PostgreSQL
  • Redis Cache, Service Bus migration for messaging workloads

Cloud-Native Refactor

  • Microservices on AKS — breaking monoliths into services
  • Event-driven architecture — Service Bus, Event Grid, Event Hubs
  • Azure Functions for event-triggered workloads — serverless
  • Azure API Management — exposing legacy services via API gateway
  • Data pipeline modernisation — ADF replacing SSIS packages
  • Logic Apps — replacing on-premises integration middleware

Oracle Workload Migration

  • Oracle EBS on Azure VM — lift-and-shift to Azure IaaS
  • Oracle Database on Azure VM or Oracle Cloud Interconnect
  • OCI + Azure hybrid — Oracle on OCI with Azure for surrounding estate
  • Oracle Fusion Cloud alongside Azure-native applications
  • EBS Cloud Manager coordination for OCI-hosted EBS + Azure connectivity
  • Oracle/Azure identity federation — Entra ID with Oracle IAM

Post-Migration Operations

  • Azure Monitor — metrics, logs, alerting for migrated workloads
  • Azure Backup — policy-based backup for VMs, SQL, Azure Files
  • Cost optimisation — right-sizing, Reserved Instances, Hybrid Benefit
  • Defender for Cloud baseline applied to migrated workloads
  • Azure Update Manager — OS and application patching
  • Documentation — updated architecture diagrams, runbooks, ops guide

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Five-Phase Migration Delivery

Five-Phase Migration Delivery

eAppSys follows a structured five-phase migration methodology — from discovery through to post-migration operations.

01

Assess

Azure Migrate discovery, dependency mapping, wave planning, TCO

02

Prepare

Landing zone validated, network, IAM, backup, and monitoring pre-configured

03

Migrate

Wave-by-wave migration — test first, production cutover with rollback plan

04

Validate

Performance, connectivity, application functionality, security baseline

05

Operate

Azure Monitor, Backup, Defender, cost optimisation — handover to DevOps/CloudOps

Why eAppSys

Your Azure Partner

All Four Migration Patterns

eAppSys delivers rehost, replatform, refactor, and retire — the right pattern selected per workload, not a blanket lift-and-shift applied to every application.

Oracle + Azure Specialist

eAppSys migrates Oracle workloads alongside Azure — Oracle EBS to Azure IaaS, OCI+Azure hybrid via Oracle Cloud Interconnect, and Oracle Fusion alongside Azure-native services.

Zero-Downtime Cutover Options

eAppSys uses Azure Site Recovery, SQL log shipping, and traffic manager to minimise cutover windows — critical workloads migrated with near-zero downtime through continuous replication.

Post-Migration Optimisation Included

Every migration engagement includes post-migration cost optimisation — right-sizing, Reserved Instance recommendations, and Hybrid Benefit review within 90 days of go-live.
Common Questions

Frequently Asked Questions

What migration patterns does eAppSys use?
eAppSys uses four patterns per workload. Rehost (lift-and-shift): moving VMs and databases to Azure IaaS with no application changes — fastest, lowest risk. Replatform: migrating to PaaS (Azure SQL MI, App Service) with minimal changes — reduces operational overhead. Refactor: redesigning as cloud-native microservices or serverless — maximum cloud benefit. Retire: decommissioning workloads no longer needed, reducing migration scope.
Azure Migrate is Microsoft’s hub for discovery, assessment, and migration of on-premises workloads. eAppSys deploys the Azure Migrate appliance for agentless discovery or installs the dependency agent for application dependency mapping. Azure Migrate generates right-sizing recommendations and TCO comparisons. eAppSys uses it alongside Azure Site Recovery (VM migration), Database Migration Service (SQL), and App Service Migration Assistant.
The path depends on compatibility. Azure SQL Managed Instance: near-100% SQL Server compatibility, suitable for SQL Agent, Service Broker, CLR, and linked servers. Azure SQL Database: for applications compatible with SQL Database’s feature set. SQL Server on Azure VM: full SQL Server instance for workloads with specific feature dependencies. eAppSys uses Azure Database Migration Service and Data Migration Assistant for all SQL Server migrations.
Yes — three patterns. Oracle EBS or Database on Azure IaaS: lift-and-shift to Azure VM. OCI + Azure hybrid: Oracle workloads on OCI connected to Azure via Oracle Cloud Interconnect — Oracle-optimised infrastructure with Azure for the surrounding estate. Oracle to Azure-native: migrating Oracle Database to Azure SQL or PostgreSQL where the application can be adapted. eAppSys advises on the right pattern per workload.
Post-migration deliverables include: Azure Monitor alerts and dashboards; Azure Backup policies for VMs, SQL, and Azure Files; Defender for Cloud security baseline; Azure Update Manager for OS patching; a cost optimisation report with right-sizing and Reserved Instance recommendations within 90 days; and updated architecture documentation, runbooks, and an operations handover guide.
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