Business Continuity and Disaster Recovery

Have a Plan B for disaster recovery

During a disaster recovery you want to be fast to respect RTO.

You can, for example, recover operation using snapshots (both volumes and instances).

Snapshots restoration can fail if the target system changed (different version, different setup, etc) so you also want to ensure to be able to restore from scratch. This operation will take more time and you could miss your RTO, but still better to be able to recover operation with a little overtime (maybe paying a fee and giving discounts to your customers) than not being able to do it.