Disaster recovery is difficult. Cloud tools can simplify this problem. All of our components run concurrently in more than one datacentre, automatically load-balanced and health checked. Failures are tolerated, and, never observable to the end user.
All databases are based on RAFT consensus algorithms, and storage is multi-regional where appropriate.
Customer hosted applications automatically gain this property of hyperscale cloud resiliency and disaster recovery. Faster, simpler, cheaper.