Zero-Downtime Migration

Purpose

Plan a zero-downtime migration for data or infrastructure.

Inputs to request

• Source and target systems.
• Data volume and sync approach.
• Rollback requirements and cutover window.

Workflow

1. Define dual-write or compatibility strategy.
2. Plan rollout phases and rollback triggers.
3. Validate data consistency and cutover checks.

Output

• Migration plan with phases and rollback.

Quality bar

• Include verification steps before cutover.
• Document rollback triggers and owner.