This document discusses best practices for using Amazon RDS for Oracle. It covers RDS Oracle licensing options, use cases like production and test instances, security practices like using private subnets and IAM roles, performance practices like proper sizing and monitoring, and data migration best practices including using Oracle Data Pump for large data sets and GoldenGate for ongoing replication.

1. Amazon RDS Oracle Best Practices

2. Agenda
• Quick introduction to Amazon RDS for Oracle
• RDS Oracle Licensing
• RDS Oracle Use Cases
• RDS Oracle Security Best Practices
• RDS Oracle Performance Best Practices
• RDS Oracle Management Best Practices
• RDS Oracle Data Migration Best Practices

3. 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
What is Amazon RDS?

4. What is Amazon RDS?
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. What is Amazon RDS?
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

6. Why Amazon RDS for Oracle?
• Deploy multiple editions of Oracle 11g in minutes
• Realize up to 25,000 IOPS
• Get a high-availability Oracle solution without Enterprise Edition
• Choice of Pay-as-You-Go or License Included model brings
flexibility
• Use AWS Enterprise Support or Oracle support
• Support for Oracle GoldenGate enables multi-master configurations

7. Oracle
Licensing and Support
Processor & socket licensing
0.25 core multiplier for standard
licenses (sockets)
0.5 core multiplier for
enterprise licenses (processor)
BYOL
• Enterprise license agreement
• Unlimited license agreement
• Oracle partner network
• BPO license
• Oracle Technology Network
Pay-as-you-go
• RDS for Oracle SE One

8. Oracle Licensing Options License Included Bring-Your-Own-License
Standard Edition One
Standard Edition
Enterprise Edition
Amazon RDS Oracle – Licensing & Pricing Options
Oracle Pricing Options Contract Pay Per Hour
License
Included
Bring Your
Own License
Multi AZ
On-Demand No contract
Reserved Instances
1 year or 3 year
options
Licensing Options:
Pricing Options:

9. Production Instances of
Enterprise Applications
Development and Test
Instances for Enterprise and
custom applications
Replica of Production for
reporting and BI/DW feed.
Training, POC, Sandbox,
Patch Testing and
debugging instances
Disaster Recovery Site on
AWS
Custom Developed
Applications
Customer use cases for RDS Oracle

10. Amazon RDS - Great fit for Enterprise Application
Delivers Enterprise Application needs and wants
• Fully managed database engines that are commonly used for
Enterprise Applications.
• High-Availability and transparent failover
• Enterprise class performance and easy scalability
• Automated backups and easy replication
• Rapid provisioning and deployment
• Automation support with APIs and CloudFormation scripts
• Low-touch management/administration

11. Enterprise Application AWS customers use with RDS
• PeopleSoft
• JD Edwards
• Siebel
• ATG Web Commerce
• Jaspersoft
• SugarCRM
• Alfresco

12. Enterprise Application HA Architecture

13. RDS Oracle Best Practices

14. RDS Oracle Security Best Practices
• Individual IAM account to each person who manages RDS
resources. Do not use AWS root credentials.
• Do not use master user for application db access, create
separate accounts
• Put your RDS Database instance in a private subnet of a VPC
• Be careful with Security Group setting, never use 0.0.0.0/0

15. RDS Performance Best Practices
• Choose the right size instance for your workload
• Always go with PIOPS
• Monitor database alert logs for critical issues
• Don’t leave invalid database objects in the database
• Provision enough storage to host archive logs before they are
backed up and deleted.
• Scaling storage and PIOPS are time consuming so plan
accordingly.
• Scaling instance requires outage (if not using Multi-AZ)

16. RDS Management Best Practices
• Always schedule backups
• Create snapshots on a regular basis
• Use the familiar Oracle EM DB Console at :1158/em
• Use CloudWatch alerts to always keep an eye on the instance
with alerts
• If you need to use third party monitoring tools use agentless tools

17. Data Migration to RDS Oracle

18. General Considerations
• Number of databases, data sizes
• Data types, character sets
• Data transfer mechanism
• Connected Apps, DB links
• Network accessibility, bandwidth, latency
• Acceptable downtime

19. One-Time Migration
• Copy entire database to Amazon RDS
Use cases
– Migrate prod to Amazon RDS
– Build POCs, pilots
– First step before replicating databases

20. RDS Pre-Migration Steps
• Stop applications accessing the DB
• Take a snapshot
• Disable backups
• Use Single-AZ instances
• Optimum instance for load performance
• Configure security for cross-DB traffic

21. For Small Dataset, one time load
• Oracle Import/Export
• Oracle Data Pump network mode
• Oracle SQL*Loader
• Oracle materialized views

22. For Large Dataset, one time load
• Oracle Data Pump Export and Import

23. Migration Process

24. Data Pump Export
• Reduce the data set to optimal size, avoid indexes
• Use compression and parallel processing
• Use multiple disks with independent I/O

25. Optimize Data Upload
• Use Tsunami for UDP-based file transfer
• Use large Amazon EC2 instance with SSD or PIOPS volume
• Use multiple disks with independent I/O
• You could use multiple Amazon EC2 instances for parallel upload

26. Data File Upload to RDS
• RDS DB instance has an externally accessible Oracle Directory Object
DATA_PUMP_DIR
• Use a script to move data files to Amazon RDS DATA_PUMP_DIR
• Use the largest Amazon RDS DB instance possible during the import
process
• Avoid using Amazon RDS DB instance for any other load during this
time
• Provision enough storage in the Amazon RDS DB instance for the
uploaded files and imported data

27. Import data into the RDS
• Import from within Amazon RDS instance using
DBMS_DATAPUMP package
• Submit a job using PL/SQL script

28. Periodic Migration
• Copy changes to Amazon RDS
• Use cases
– Delta refresh for prod migration
– Daily refresh for non-prod, reporting

29. Ongoing Replication
• Log shipping
• Transactional replication
• Use cases
– Near-zero downtime migrations
– Query offloading, BI/reporting
– Data protection, disaster recovery

30. Oracle GoldenGate
• Oracle product for real-time data integration and
replication
– Log-based change data capture
– Transaction-safe bidirectional replication
• Works with Amazon RDS for Oracle
– Migration into and out of RDS Oracle
– Providing a readable secondary for read offloading
– Master-master replication

31. GoldenGate Replication with RDS Oracle
GoldenGate
Oracle
GoldenGateOracle
GoldenGate GoldenGate
On-premises Oracle to RDS/Oracle Oracle in EC2 to RDS/Oracle
RDS/Oracle to RDS/Oracle
(same AWS Region)
RDS/Oracle to RDS/Oracle
(different AWS Region)

32. Getting started with GoldenGate
• Obtain license from Oracle
– “Bring-Your-Own-License” model only
• Run the GoldenGate Hub on a correctly sized EC2
Instance
• Enable supplemental logging on source database
• Configure source to retain redo logs
• Use the Extract and Replicat utilities provided by Oracle
GoldenGate

33. RDS Post-migration Steps
• Turn on backups
• Turn on multi-az
• Create read replicas
• Tighten down security
• Notifications via Amazon CloudWatch, DBEvents