AWS Webcast - High Availability SQL Server with Amazon RDS

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Amazon RDS for Microsoft SQL Server makes it easy to set up, operate, and scale SQL Server deployments in the cloud. Amazon RDS Multi-AZ deployments provide enhanced availability and durability, making them a natural fit for production database workloads.

Review this webinar to learn more about this easy way to achieve highly available operation of SQL Server. When you provision a Multi-AZ DB Instance, Amazon RDS automatically creates a primary DB Instance and synchronously replicates the data to a standby instance in a different Availability Zone (AZ). Each AZ runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable. Amazon RDS performs an automatic failover to the standby, with no administrator intervention required, so that your application can resume database operations as soon as the failover is complete.

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AWS Webcast - High Availability SQL Server with Amazon RDS

  1. 1. High Availability SQL Server with Amazon RDS Sergei Sokolenko Sr Product Manager Amazon Relational Database Service
  2. 2. Join us and learn about the AWS platform, new services and how to get started. Register for a Summit near you. aws.amazon.com/aws-summit-2014/ Amsterdam | June 10 Over Registered New York | July 10 Register now Tokyo | July 17-18 Register now Brisbane | August 5 Registration coming soon Melbourne | August 12 Registration coming soon Perth | August 20 Registration coming soon Beijing | September 4 Registration coming soon Tel Aviv | September 17 Registration coming soon
  3. 3. If you host your databases on-premises Power, HVAC, net Rack & stack Server maintenance OS patches DB s/w patches Database backups Scaling High availability DB s/w installs OS installation you App optimization
  4. 4. If you host your databases on-premises Power, HVAC, net Rack & stack Server maintenance OS patches DB s/w patches Database backups Scaling High availability DB s/w installs OS installation you App optimization
  5. 5. If you host your databases in EC2 Power, HVAC, net Rack & stack Server maintenance OS patches DB s/w patches Database backups Scaling High availability DB s/w installs OS installation you App optimization
  6. 6. If you host your databases in EC2 OS patches DB s/w patches Database backups Scaling High availability DB s/w installs you App optimization Power, HVAC, net Rack & stack Server maintenance OS installation
  7. 7. If you choose a managed DB service like RDS SQL Server Power, HVAC, net Rack & stack Server maintenance OS patches DB s/w patches Database backups App optimization High availability DB s/w installs OS installation you Scaling
  8. 8. Introducing Multi-AZ support for RDS SQL Server Power, HVAC, net Rack & stack Server maintenance OS patches DB s/w patches Database backups App optimization High availability DB s/w installs OS installation you Scaling
  9. 9. Amazon RDS Multi-AZ Few clicks or One API call High Availability via Amazon RDS Multi-AZ Do It Yourself SQL Server Potentially ~100+ Manual steps Set up primary and standby instances Create synchronous replication Create and manage DNS entries Detect instance failure conditions Detect network failure conditions Detect storage failure conditions Decide when to fail-over…. Re-establish primary secondary connections.
  10. 10. What are Multi-AZ deployments? • Primary and Standby in different Availability Zones • Synchronous replication of Primary to Standby • Automated failover to Standby in case of failures Application Primary in AZ “-1a” Standby in AZ “-1b” mydb.{…}.rds.amazonaws.com us-east-1
  11. 11. What are Multi-AZ deployments? Application Primary in AZ “-1a” Standby in AZ “-1b” mydb.{…}.rds.amazonaws.com us-east-1 • Primary and Standby in different Availability Zones • Synchronous replication of Primary to Standy • Automated failover to Standby in case of failures
  12. 12. What are Multi-AZ deployments? Application Primary in AZ “-1b” mydb.{…}.rds.amazonaws.com us-east-1 • Primary and Standby in different Availability Zones • Synchronous replication of Primary to Standy • Automated failover to Standby in case of failures
  13. 13. What are Multi-AZ deployments? Application Standby in AZ “-1*” Primary in AZ “-1b” us-east-1 mydb.{…}.rds.amazonaws.com • Primary and Standby in different Availability Zones • Synchronous replication of Primary to Standy • Automated failover to Standby in case of failures
  14. 14. Demo: Creating a Multi-AZ database
  15. 15. How to change your application architecture for high availability Single-AZ RDS database instance Application, running on Amazon EC2 instances Elastic Load Balancer instance
  16. 16. A resilient, still simple application architecture RDS database instances: Primary and Multi-AZ standby Application, in Amazon EC2 instances, in each AZ Elastic Load Balancer instance AZ “-1a” AZ “-1b” AZ “-1c”
  17. 17. … thriving even when an entire AZ becomes unavailable Old Standby becomes the Primary, a new standby gets created in an available AZ Application instances switch over to the new Primary Elastic Load Balancer instance AZ “-1a” AZ “-1b” AZ “-1c”
  18. 18. How to speed up failovers • Failover Phases – Failure Detection, – Standby Promotion, – DNS Update and Propagation, – Crash Recovery • Crash Recovery = f(storage type) • Provisioned IOPS recovery is faster
  19. 19. How to detect and test failovers • Configure DB Events notifications • Receive Notifications via Email or SMS • Use the rds-reboot-db-instance CLI to initiate a test failover • Initiate failover via the Reboot command in RDS Console
  20. 20. Demo: Multi-AZ Failover
  21. 21. FAQ Q. What RDS database editions and versions are supported with Multi-AZ? A. Standard and Enterprise Editions, SQL Server 2008R2 and 2012. Q. Which AWS regions support SQL Server Multi-AZ? A. US East (Northern Virginia), US West (Oregon), and EU (Ireland). We plan to support other regions in the future. Q. Can I setup Multi-AZ across multiple AWS regions? A. Cross-region Multi-AZ is not supported. A. Interested in cross region disaster recovery? Try our cross region snapshot copy. Q. How do I manage Users, Logins, and Permissions on the Secondary? A. RDS will automatically replicate changes on the Primary to the Secondary, including Users, Logins, Permissions.
  22. 22. Sign up and learn more about Amazon RDS • Amazon RDS for SQL Server home page: http://aws.amazon.com/rds/sqlserver/ • Amazon RDS Frequently Asked Questions: http://aws.amazon.com/rds/faqs/ • Links to Import Guides for each engine: http://aws.amazon.com/rds/faqs/#9
  23. 23. Next steps • Snapshot your DB • Restore snapshot to a test instance • Convert it to Multi-AZ • Adjust application to retry DB connection
  24. 24. Next steps • Snapshot your DB • Restore snapshot to a test instance • Convert it to Multi-AZ • Adjust application to retry DB connection
  25. 25. Next steps • Snapshot your DB • Restore snapshot to a test instance • Convert it to Multi-AZ • Adjust application to retry DB connection Primary in AZ “-1a”
  26. 26. Next steps • Snapshot your DB • Restore snapshot to a test instance • Convert it to Multi-AZ • Adjust application to retry DB connection Primary in AZ “-1a” Standby in AZ “-1b”
  27. 27. Thank you

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