AWS Databases contd

• Single Region: Single Database with Read Replica
  
• Multi Region: Single Database with Read Replica in other region
  
• Multi-AZ RDS deployment
  
• Multi AZ generally as a Master instance and one or more standby instances
• Multi AZ is generally preferred for production environments
  
• Create the multiaz db instance as discussed in the class (not free tier eligible)
  
• Lets create an estimate of pricing Refer Here
• Single AZ
  
• Multi AZ
  
• Reservations: We give a long term commitment to AWS (1 year or 3 years)
  • Payment options are monthly, partial upfront, full upfront (highesht discount)
  • Production databases are generally reserved to save costs
• Next Steps:
  • Understanding Backups
  • Understanding subnet groups, parameter groups etc
  • Understanding Aurora.