Disaster Recovery Strategies

Question 1

What are the Disaster Recovery Strategies

Answer 1

• Backup & Restore
• Pilot Light
• Warm Standby
• Multi-site active/active

Question 2

What is Backup & Restore?

Answer 2

Periodically back-up data to S3 or other AWS storage services & restore data from those backups if disaster happens.

RTO/RPO: High / Cost: $

Active/Passive

Question 3

What is Pilot Light?

Answer 3

Running only core components in AWS and scale up enviornment if disaster happens.

RTO/RPO: Medium /.Cost: $$

Active/Passive

Question 4

What is Warm Standby?

Answer 4

Maintain scaled-down version of production enviornment in AWS as it’s always running & can be quickly scaled up if disaster happens.

RTO/RPO: Low / Cost: $$$

Active/Passive

Question 5

What is Multi-Site Active/Active?

Answer 5

Run active-active architecture w/ production enviornment & fully replicated enviornment running simultaneously where both enviornments handle live traffic & operations meaning high availability & almost no downtown.

RTO/RPO: Very Low / Cost: $$$$

Active/Passive