Infrastructure
Zero-Loss Virtualization Migration
Planned and executed migration of 100+ servers with rollback-safe cutovers, no data loss, and minimal business disruption.
Context
A multi-site organization needed to modernize its virtualization platform without disrupting business-critical systems.
Problem
Legacy clusters were capacity-constrained, backup posture was inconsistent, and there was no reliable rollback model for large migration waves.
Approach
We built a migration-factory model with discovery baselines, dependency mapping, pilot waves, validation gates, and automated post-cutover checks.
Architecture
- Dual-track source and target environments during migration windows
- Snapshot plus backup verification before each cutover wave
- Automated inventory and topology mapping for dependency-aware sequencing
- Defined rollback checkpoints for every migration batch
Architecture Diagram Placeholder
Results and Metrics
- 100+ servers migrated with zero data loss
- 97% first-pass cutover success rate
- 41% reduction in backup job failures after standardization
Tools and Stack
VMware, Proxmox, Veeam, Terraform automation, and NetBox-backed inventory controls.
Lessons Learned
Migration speed and safety both improve when validation checkpoints are automated and rollback criteria are explicit before each wave begins.