1. AWS DR Strategies
Date: 10/06/2017

2. AWS Differentiator
#1 Leadership : AWS is the leader in Infrastructure as a Service Gartner Magic Quadrant for 6 years in a row with unmatched Technical and TCO benefits
True On-demand flexibility : In the generation of intelligently managing infrastructure, AWS offers on- demand usage, scale up and down as the workload deserves to minimize sunk cost
Eliminate guessing future: AWS allows pay per use infrastructure, so cut the risk of under sizing or oversizing your infrastructure and optimize till you stabilize. In future when your infra needs growth, scale up on demand
Lower TCO and continuous price drops: AWS helps with inbuilt tools to suggest infra optimization and cost savings, lower your IT expenses with AWS price drops – 58 price cuts till date
Ready for next refresh? AWS keeps improving infrastructure thereby helping you to use the latest generation technology as days progress, don’t get held with purchased infrastructure
Don’t waste on idling resources : AWS by default offers rich configurable features of auto scaling, auto recovery of instances thereby reducing cost overhead of idling resources for failover
Best in Industry SLA: With the leader comes the best in industry uptime SLA, example EC2 instances offering 99.95% uptime, AWS S3 storage offering % durability, Business support with 1 hour CTR for production issues

3. Backup configuration state and data Store Backups in Amazon S3
AWS Disaster Recovery
High Availability
Backup
Disaster Recovery
Keep your applications running 24x7
Make sure your data is safe
Get your applications and data back after a major disaster
Backup configuration state and data
Store Backups in Amazon S3
Archive in Glacier

4. Start Here: Business Continuity Requirements
RPO
RTO
Transactions Lost
Down time
Recovery Point Objective (RPO)
Recovery Time Objective (RTO)
How much data loss can be tolerated?
Zero data loss? 15 minutes out of date?
How quickly I need this service to be recovered
1 minute? 15 minutes? 1 hour? 4 hours? 1 day?
RPO is the maximum targeted period in which data might be lost from an IT service due to a major incident.
RTO is a targeted duration in which a business process must be restored after a disaster or disruption.
High Availability is a DR where RTO and RPO are equal to Zero.
If it harms critical business processes, it may be a disaster
Time-based definition – how long can the business stand the pain?
Think about the Probability of occurrence
Fire, flood, hurricane, tornado, earthquake, volcanoes
Plane crashes, vandalism, terrorism, riots, sabotage, loss of personnel, etc.
Anything that diminishes or destroys normal data processing capabilities

5. AWS offers four levels of DR support across a spectrum of complexity and time
Backup & Restore
Warm standby in AWS
Hot standby
(with multi-site)
Pilot light
RPO/RTO: Hours
RPO/RTO: Minutes
RPO/RTO: Seconds
RPO/RTO: Real-time
Low
High
Lower priority use cases
Solutions: S3, Elastic Block Store
Cost: $
Meeting lower RTO & RPO requirements
Core services
Scale AWS resources in response to a DR event
Cost: $$
Solutions that require RTO & RPO in minutes
Business critical services
Cost: $$$
Auto-failover of your environment in AWS
Cost: $$$$
Applications can be placed on a spectrum of complexity…
Business continuity ensures that critical business functions continue to operate or recover quickly despite serious disasters.
Disaster recovery (DR) is how you get there. DR enables the recovery or continuation of tech infrastructure and systems following a disaster.

6. Disaster Recovery: On Premises versus AWS Cloud
CAPEX of building backup data centers
Unnecessary OPEX of storage, archival and retrieval tools
Testing and recovery without week- long off-site drills
Reliant on aging technology: tape
Low upfront CAPEX without building or leasing multiple data centers
Pay only for services used
Remotely test any time from anywhere
Improve your security posture in the cloud
Regionally diverse with multiple AZs
Scalable and automated DR planning
Single DR level across organization on premises
Separate levels of DR per application or business unit – with AWS

7. Cloud-based disaster recovery services that enable rapid recovery of your IT infrastructure and data
Fast Performance
Elasticity
Fast disk-based storage and retrieval of files.
Add any amount of data, quickly. Easily expire and delete without handling media.
No Tape
Secure
Eliminate costs associated with transporting, storing, and retrieving tape media and associated tape backup software.
Secure and durable cloud disaster recovery platform with industry-recognized certifications and audits.
Compliance
Partners
Fast retrieval of files allows you to avoid fines for missing compliance deadlines.
AWS solution provider and system integration partners to help with your deployment.
Cost Savings
Consolidate DR data center sites to slash DR budgets by up to 50% and reduce hardware footprints by up to 30%. Only pay for storage and computing resources used in recovery scenarios.
Elasticity
Add any amount of data, quickly. Easily expire and delete without handling tape.
Performance
Take advantage of fast disk-based storage and file retrieval without the costs associated with transporting, storing or retrieving tape media in off-site facilities. Amazon S3 and Glacier storage services used for backups offer % durability for objects stored in them.
Secure
Utilize Amazon’s industry-recognized cloud security certifications and ensure security with our flexible access control and encryption tools for data in transit and at-rest.
Scalable
Scale instantly in the AWS cloud with pre-configured resources (AMIs). Add any amount of data quickly, test any time Compliance
Stay compliant in the cloud without building new data centers or relying on slow file retrieval systems that impact compliance audit deadlines and result in fines. See: .

8. Increasing your Security Posture in the Cloud
People & Process
System
Network
Physical
AWS security approach
Size of AWS security team
Visibility into usage & resources

9. AWS Cloud Compliance Accreditations & Certifications
Helping customers understand the robust controls in place at AWS to maintain security and data protection in the cloud
Accreditations & Certifications

10. Pilot Light Architecture
Build resources around replicated dataset
Scale AWS resources in response to a DR event
Keep ‘pilot light’ on by replicating core databases
Build AWS resources around dataset and leave in stopped state
Start up pool of resources in AWS when events dictate
Match required production capacity through auto-scaling policies
Cut over to the system in AWS

11. Pilot Light
Stopped instances

12. Pilot Light
Running instances

13. Visit: aws.amazon.com/architecture/