Summary
Sonata Software partnered with a global ITES company to re-host its on-premises infrastructure to Microsoft Azure. Using a phased, low-disruption approach, Sonata built a secure Azure landing zone, migrated workloads with Azure-native services and implemented post-migration governance for cost, security and operations.
Client Overview
A global technology solutions provider offering a wide range of services, including digital transformation, IT services and consulting, to clients across various industries.
Headquarter
Bengaluru
Destinations
7 Countries
Employees
12000+
Pressure points
- High operational costs
- Incredibly high annual datacenter spend
- Hardware refresh cycle due in 12 months
- Infrastructure complexity
- Mixed hypervisor environment
- ~550 VMs with inconsistent configurations
- Downtime sensitivity
- 99.95% SLA requirements
- Critical workloads with zero tolerance for disruption
- Security and compliance
- Manual patching and fragmented security controls
- Compliance with ISO 27001, SOC 2 and GDPR
Solutions highlights
We executed a phased migration using Azure Migrate, focusing on minimal disruption and rapid ROI:
- Discovery and assessment
- Inventoried all workloads using Azure Migrate Appliance
- Identified 40% over-provisioned VMs, enabling right-sizing
- Planning and design
- Built a secure Azure landing zone with:
- Hub-and-spoke network topology
- Azure Firewall, NSGs and Private Endpoints
- Log Analytics and Azure Monitor
- Migration execution
- VMware VMs:Migrated using agentless replication
- Hyper-V VMs:Migrated using agent-based replication
- SQL Server:Remaining rehosted on SQL Server on Azure VMs
- Post-migration optimization
- Enabled Azure Backup, Update Management and Azure Defender
- Implemented cost management policies and auto-shutdown schedules
Results that speak volumes
Reduce costs by $250K annually
Improve operational agility and security posture
Achieve faster provisioning and better compliance
Lay the foundation for future modernization (e.g., containerization, PaaS adoption)
By leveraging Sonata’s expertise and Azure-native tools, we delivered a seamless migration with measurable business impact.
