Single Region, Multi-AZ, or Multi-Region?
Choose between single-region, multi-AZ, and multi-region designs by naming the failure domain the business can tolerate.
Architecture fork The team can launch a new customer workflow in one place this week or add more locations with more setup work. The choice decides which outage story becomes acceptable by default. Failure domains Cover the failure you cannot afford, no more and no less Single-instance, single-zone, multi-AZ, and multi-region designs are different bets about which failures the business can absorb. Reflex Use one location now and hope later work closes the gap. A location choice tied to business impact instead of habit. Reliability architecture should map directly to the outage the business is unwilling to accept. The workload…
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