Amazon EC2 | Convertible Reserved Instances Flashcards
Do I need to take any action at the time of purchase to receive volume discounts?
Convertible Reserved Instances
Amazon EC2 | Compute
No, you will automatically receive volume discounts when you use the existing PurchaseReservedInstance API or EC2 Management Console interface to purchase RIs. If you purchase more than $10M worth of RIs contact us about receiving discounts beyond those that are automatically provided.
What is a Convertible RI?
Convertible Reserved Instances
Amazon EC2 | Compute
A Convertible RI is a type of Reserved Instance with attributes that can be changed during the term.
When should I purchase a Convertible RI instead of a Standard RI?
Convertible Reserved Instances
Amazon EC2 | Compute
The Convertible RI is useful for customers who can commit to using EC2 instances for a three-year term in exchange for a significant discount on their EC2 usage, are uncertain about their instance needs in the future, or want to benefit from changes in price.
What term length options are available on Convertible RIs?
Convertible Reserved Instances
Amazon EC2 | Compute
Like Standard RIs, Convertible RIs are available for purchase for a one-year or three-year term.
Can I exchange my Convertible RI to benefit from a Convertible RI matching a different instance type, operating system, tenancy, or payment option?
Convertible Reserved Instances
Amazon EC2 | Compute
Yes, you can select a new instance type, operating system, tenancy, or payment option when you exchange your Convertible RIs. You also have the flexibility to exchange a portion of your Convertible RI or merge the value of multiple Convertible RIs in a single exchange. Click here to learn more about exchanging Convertible RIs.
Can I transfer a Convertible or Standard RI from one region to another?
Convertible Reserved Instances
Amazon EC2 | Compute
No, a RI is associated with a specific region, which is fixed for the duration of the reservation’s term.
How do I change the configuration of a Convertible RI?
Convertible Reserved Instances
Amazon EC2 | Compute
You can change the configuration of your Convertible RI using the EC2 Management Console or the GetReservedInstancesExchangeQuote API. You also have the flexibility to exchange a portion of your Convertible RI or merge the value of multiple Convertible RIs in a single exchange. Click here to learn more about exchanging Convertible RIs.
Do I need to pay a fee when I exchange my Convertible RIs?
Convertible Reserved Instances
Amazon EC2 | Compute
No, you do not pay a fee when you exchange your RIs. However may need to pay a one-time true-up charge that accounts for differences in pricing between the Convertible RIs that you have and the Convertible RIs that you want.
How do Convertible RI exchanges work?
Convertible Reserved Instances
Amazon EC2 | Compute
When you exchange one Convertible RI for another, EC2 ensures that the total value of the Convertible RIs is maintained through a conversion. So, if you are converting your RI with a total value of $1000 for another RI, you will receive a quantity of Convertible RIs with a value that’s equal to or greater than $1000. You cannot convert your Convertible RI for Convertible RI(s) of a lesser total value.
Can you define total value?
Convertible Reserved Instances
Amazon EC2 | Compute
The total value is the sum of all expected payments that you’d make during the term for the RI.
Can you walk me through how the true-up cost is calculated for a conversion between two All Upfront Convertible RIs?
Convertible Reserved Instances
Amazon EC2 | Compute
Sure, let’s say you purchased an All Upfront Convertible RI for $1000 upfront, and halfway through the term you decide to change the attributes of the RI. Since you’re halfway through the RI term, you have $500 left of prorated value remaining on the RI. The All Upfront Convertible RI that you want to convert into costs $1,200 upfront today. Since you only have half of the term left on your existing Convertible RI, there is $600 of value remaining on the desired new Convertible RI. The true-up charge that you’ll pay will be the difference in upfront value between original and desired Convertible RIs, or $100 ($600 - $500).
Can you walk me through a conversion between No Upfront Convertible RIs?
Convertible Reserved Instances
Amazon EC2 | Compute
Unlike conversions between Convertible RIs with an upfront value, since you’re converting between RIs without an upfront cost, there will not be a true-up charge. However, the amount you pay on an hourly basis before the exchange will need to be greater than or equal to the amount you pay on a total hourly basis after the exchange.
For example, let’s say you purchased one No Upfront Convertible RI (A) with a $0.10/hr rate, and you decide to exchange Convertible RI A for another RI (B) that costs $0.06/hr. When you convert, you will receive two RIs of B because the amount that you pay on an hourly basis must be greater than or equal to the amount you’re paying for A on an hourly basis.
Can I customize the number of instances that I receive as a result of a Convertible RI exchange?
Convertible Reserved Instances
Amazon EC2 | Compute
No, EC2 uses the value of the Convertible RIs you’re trading in to calculate the minimal number of Convertible RIs you’ll receive while ensuring the result of the exchange gives you Convertible RIs of equal or greater value.
Are there exchange limits for Convertible RIs?
Convertible Reserved Instances
Amazon EC2 | Compute
No, there are no exchange limits for Convertible RIs.
Do I have the freedom to choose any instance type when I exchange my Convertible RIs?
Convertible Reserved Instances
Amazon EC2 | Compute
No, you can only exchange into Convertible RIs that are currently offered by AWS.
