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Multi-AZ Database Instance Deployment In AWS
Purpose
Which Events Are Failover Events?
- Loss of primary AZ
- primary DB instance failure
- loss of network connectivity on primary
- patching activity on the primary database instance
- manual failover of primary database
How Is The Database Synchronized In Multi-AZ Instance Deployment?
- RDS takes a snapshot of the primary database
- RDS restores the snapshot in another AZ
How To Enable Multi-AZ Database Instance Deployment?
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Is There Any Cost Associated With Data Transfer Between The Primary And Standby Databases?
How The Maintenance Activities Are Done In Multi-AZ?
- Perform operations on standby
- Promote standby to primary
- Perform operations on new standby (demoted primary)