Amazon ElastiCache adds multi‑AZ durability support
🚀 Today AWS adds durability to Amazon ElastiCache, allowing workloads that need microsecond read latency but cannot tolerate data loss to run on ElastiCache. The feature stores data durably across multiple Availability Zones using a Multi‑AZ transactional log for fast failover, recovery, and node restarts. Two durability modes—synchronous and asynchronous writes—let you trade off zero data loss with millisecond write latency or microsecond write latency with potential brief data loss.
