Multi-Site Resilience
Hyper-V Replica, Storage Replica, Campus Clusters, and SAN Replication
Post 13 protects your data with backups. This post protects your services with replication.
Backups recover data , you restore a VM from yesterday’s backup and accept the data loss between the backup and the failure. Replication recovers services , your VMs are already running (or can start within minutes) at a secondary site with near-zero data loss. Production environments need both, and the architecture decisions you make here determine whether a site failure is a business disruption or a page in the runbook.