RI Flashcards
Reserve Instances
Billing mechanism to provide discount to customers in exchange for committed usage, time period (1Y - 3Y), and configuration, they work with EC2, RDS, Redshfit, ElasticCache, DynamoDB.
Zona RI vs Regional RI
Zonal RI where u can reserve capacity in a specific AZ , Regional RI u cannot reserve capacity but gives u more aplicability
Purchase requirements of RIs
Steady service use for 8mths, compromise to 1Y or 3Y term, choose between convertible or standard
Types of RI
Convertible (U can change between family, size, OS, no Region), Standard (Same config), Schedule (For time windows of days, hrs, month)
Purchase RI Options
No upfront, partial upfront, all upfront