Last week, AWS announced the release of their new Scheduled Reserved Instances. These new reserved instances are designed for workloads that recur on a daily, weekly, or monthly schedule, and are purchased for a one-year term. AWS says that Scheduled Reserved Instances will provide a 5-10% savings over On-Demand instances used for this same purpose.
While we always appreciate new ways to save on AWS, there are a few reasons that Scheduled Reserved Instances are unlikely to make a useful addition to your toolbox.
First of all, they have a decidedly limited use case, only for predictably scheduled operations that will go on for at least one year.
Secondly, they are inflexible. Once you set a schedule, you cannot change or override it, and the options to set schedules are limited to daily, weekly, or monthly recurrence on a set duration.
Additionally, as Beth Pariseau pointed in a TechTarget article, additional management overhead is required to manage every additional type of instance that a company leverages.
Note that Scheduled Reserved Instances are also limited by region – only available in US East (Northern Virginia), US West (Oregon), and Europe (Ireland) regions – and by instance type, currently supporting C3, C4, M4, and R3 instance types.
For your recurring workloads, you can run instances only when you need them but maintain flexibility by using ParkMyCloud to schedule on/off times for On-Demand instances.
See the chart below for a full comparison of using Scheduled Reserved Instances vs. using ParkMyCloud.
Give ParkMyCloud a try for yourself – start seeing savings today.