Disaster recovery: How is your business set up to survive an outage?
Asynchronous vs synchronous. Dark disaster recovery vs. active architecture. Active/active vs. active/passive. No setup is objectively better or worse than another. The best one for you primarily depends on your level of tolerance for what happens when the server goes down.
Security experts say how individual companies choose to save their data in anticipation of an outage depends on how long they can survive before the “lights” are turned back on. What level of availability does your company need? Is the face of your company an ecommerce site where even a few minutes offline can cost an astronomical sum? Will the cost of an active-active system outweigh the potential loss of business from an outage?