Ravi Sir's Cards › AWS
Standby or both write?
This comparison card contrasts Standby or both write. Active-passive is described as primary serves. It also notes standby for failover. Active-active writes is described as both regions accept writes. It also notes need conflict rules.
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What this card says
Standby or both write?
Active-passive
Primary serves; standby for failover.
Active-active writes
Both regions accept writes; need conflict rules.
Key points
Most DR needs.
Rare high bar.
Example
DNS failover.
Use when
Simpler.
Harder.