Validation-led Migrations for CSL | Case Study

Validation-led data centre migrations

For CSL, we ran phased VMware migrations with a validation-led approach, with our engineers embedded in the project and hypercare afterwards. That meant a clean handover to Managed IT.

Client

CSL

Timeline

Project: phased. Hypercare: 2 to 4 weeks.

Key Tooling

VMware | Azure | migration tools | Jira

Outcome

Critical workloads migrated with zero data loss.

Challenge

Large data centre migrations come with real risk: application downtime, configuration drift, and an unclear handover to operations.

What we did

Built a phased migration plan with clear validation gates and rollback options.
Embedded Comans engineers through migration and hypercare to resolve issues quickly.
Created runbooks that stay current and runbook-based checks, then handed them over to the BAU team.
Performed post-migration audits and stabilisation work.

Outcome

Smooth cutovers, faster stabilisation after migration, and a clean handover to the Managed IT team.
Validation up front reduced rework and post-project incidents.

“[Client sign-off pending] Migrations completed with minimal disruption and a clear handover.”

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