We expect that you will need to use twice as many licenses for Multi-AZ deployments as you would for a corresponding Single-AZ deployment to account for the standby DB service. However, you should review your Oracle Software Licensing Agreement and comply with Oracle’s licensing policies.
Will I need an additional license(s) if I use Multi-AZ deployments for my Oracle DB services?
Licensing requirements for high-availability
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Written by Kavya Kommareddy