Recoverability In AWS

SWBAT build networks that will continue to operate through the loss of a single data center

Screenshot of successfully created VPCs in two different AWS regions

SWBAT build systems that align to a business availability objectives for redundancy.

• Screenshot of a MySQL database configured to run in multiple availability zones in the "Primary" VPC. Database must have automatic backups enabled and be in a private subnet.
• Screenshot of route tables for the configured database subnets

SWBAT build systems that align to business availability objectives for resiliency.

• Screenshot of a read-replica MySQL database configured to run in the "Secondary" VPC. Database must be in a private subnet.
• Screenshot of route tables for the configured database subnets

SWBAT predict the availability of a configuration

Paragraph describing the Recovery Time Objective (RTO) and Recovery Point Objective (RPO) of this database configuration

SWBAT use correct data access patterns.

• Log of the student connecting to, reading from and writing to the primary database
• Log of the student connecting to the read-replica database and being able to read data from the database, but not able to write (insert) data.

SWBAT monitor highly available system

• Screenshot of “Database connections” metric of database.
• Screenshot showing database replica configuration.

SWBAT operate a highly resilient database

• Screenshot of the read-replica database before promotion.,
• Another screenshot after promotion.
• Log of the student connecting to, reading from, and writing to the database in the standby region, after promotion.

SWBAT create a versioned website

Screenshot of the website with a winter scene as the background and displaying a timestamp.

SWBAT recover from “accidental” modification to website

• Screenshot of same website with a different season (picture) as the background, still displaying a timestamp
• Screenshot of AWS S3 object “index.html” showing multiple versions of the object exist.
• Screenshot of the same website once again with the original background, still displaying a timestamp.
• Screenshot of the same website with no background image.
• Screenshot of AWS S3 object “winter.jpg” showing multiple versions of the object exist with the latest being a “deletion marker”.
• Screenshot of the same website once again with the original background, still displaying a timestamp.