High Availability and Disaster Recovery Smart Features
summary
Oracle Database 23ai delivers concrete HA/DR mechanics: Blocker Resolver auto‑tunes using moving averages to detect and resolve hangs across ASM and DB layers; node weighting implements smart fencing to keep running workload alive; RAFT‑based global replication and priority transactions let clusters fail over less disruptively; CVU auto‑corrects host config and Exadata adds expedited fencing. Smart planned failover uses per‑service drain timeouts and Smart Connection Rebalance (RLB goal = smart con). Exadata Fleet Update saves >88% effort for six+ databases via out‑of‑place, group rollouts.
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chapters (12)
- 0:00Introduction to smart continuity
- 2:38Oracle high availability stack
- 3:40Smart fencing techniques
- 4:59Blocker resolver feature
- 6:46Database 23 AI innovations
- 8:23Advanced cluster resiliency
- 9:03Connection rebalancing
- 12:04Smart plan failover
- 14:21Autonomous health framework
- 17:01Cloud disaster recovery
- 18:19Fleet update automation
- 20:20Summary and conclusions
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