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AWS Billing and Cost Management
User Guide (Version 2.0)

Creating and Saving New Reports

To create a custom report, choose the New report dropdown list, and then choose one of the following report types.

Cost and Usage Report

The Cost and Usage reports show how you use services, and how your costs are distributed by service. To create your custom report, you can use all the features discussed in Analyzing Your Costs with Cost Explorer .

RI Utilization Reports

The RI Utilization reports show how much of your Reserved Instance (RIs) that you use. The reports also help you to see if you have purchased too many RIs.

The RI utilization charts display the number of Reserved Instance (RI) hours that your account uses, helping you to understand and monitor your combined usage (utilization) across all of your RIs. The reports allow you to define a utilization threshold, known as a utilization target, and identify RIs that meet your utilization target and RIs that are underutilized. The chart shows RI utilization as the percentage of purchased RI hours that are used by matching instances, rounded to the nearest percentage.

Target utilization is shown on the chart as a dotted line in the chart and in the table under the chart as a colored RI utilization status bar. RIs with a red status bar are RIs with no hours used, RIs with a yellow status bar are under your utilization target, and RIs with a green status bar have met your utilization target. You can change the utilization target in the Display Options section. To remove the utilization target line from the chart, clear Show target line on chart.

You can filter the chart to analyze the purchasing accounts, instance types, and more. The RI reports use a combination of Amazon EC2-specific filters and regular Cost Explorer filters. The Amazon EC2-specific filters are available only for the Daily RI Utilization and Monthly RI Utilization reports, and are not available anywhere else that AWS uses Cost Explorer filters. The following filters are available:

  • Availability Zone – Filter your Amazon EC2 usage by specific Availability Zones (AZs).

  • Instance Type – Filter your Amazon EC2 usage by specific instance types, such as t2.micro or m3.medium.

  • Linked Account – Filter your Amazon EC2 usage by specific linked accounts.

  • Platform (Amazon EC2-specific) – Filter your Amazon EC2 usage by platform, such as Linux or Windows.

  • Region – Filter your Amazon EC2 usage by specific regions, such as US East (N. Virginia) or Asia Pacific (Singapore).

  • Scope (Amazon EC2-specific) – Filter your Amazon EC2 usage to show RIs that are purchased for use in specific AZs or regions.

  • Tenancy (Amazon EC2-specific) – Filter your Amazon EC2 usage by tenancy, such as Dedicated or Default. A Dedicated RI is reserved for a single tenant, while a Default RI might share hardware with another RI.

In addition to changing your utilization target and filtering your RIs with the available filters, you can select a single RI or a group of RIs to show in the chart. To choose a single RI or a selection of RIs to see in the chart, select the check box next to the RIs in the table under the chart.

Cost Explorer shows the combined utilization across all of your RIs in the chart and shows utilization for individual RI subscriptions in the table under the chart. The table also includes the following information for each RI subscription:

  • Account Name – The name of the account that owns the RI subscription.

  • Subscription ID – The unique subscription ID for the RI subscription.

  • Instance Type – The RI instance type, such as t2.micro.

  • RI Utilization – The percentage of purchased RI hours that were used by matching instances.

  • RI Hours Purchased – The number of purchased hours for the RI subscription.

  • RI Hours Used – The number of purchased hours used by matching instances.

  • RI Hours Unused – The number of purchased hours not used by matching instances.

You can use this information to track how many Amazon EC2 usage hours you used (with matching RIs) and how many Amazon EC2 hours you reserved but didn't use.

The Daily RI Utilization chart displays your Amazon EC2 utilization for the previous three months on a daily basis. The Monthly RI Utilization chart displays your Amazon EC2 utilization for the previous 12 months on a monthly basis.

RI Coverage Reports

The Reserved Instance coverage chart shows how many of your instance hours are covered by RIs. This allows you to see if you have under-purchased RIs. You can define a threshold for how much coverage you want from RIs, known as a coverage target, which allows you to see where you can reserve more RIs.

Target coverage is shown on the chart as a dotted line, and the average coverage is shown in the table under the chart as a colored status bar. Instances with a red status bar are instances with no RI coverage, instances with a yellow status bar are under your coverage target, and instances with a green status bar have met your coverage target. You can change the coverage target in the Display Options section. To remove the coverage target line from the chart, clear Show target line on chart. The RI coverage reports use the Cost Explorer filters instead of the RI Utilization filters.

Cost Explorer shows the combined coverage across all of your instances in the chart and shows coverage for individual instances in the table under the chart. The table also includes the following information for each instance:

  • Instance Type – The instance type, such as t2.micro.

  • Platform – The instance operating system, such as Linux/UNIX.

  • Tenancy – The instance tenancy, such as Default or Dedicated.

  • Region – The region in which the instance is located.

  • Average coverage – The percentage of running hours that were covered by matching RIs.

  • RI covered hours – The number of running hours that were covered by matching RIs.

  • On-demand hours – The number of running hours for On-Demand Instances.

  • Total running hours – The total number of running hours.

You can use this information to track how many hours you use, and how many of those hours are covered by RIs.

The daily chart displays the number of RI hours that your account used on a daily basis for the last three months. It uses the same filters and options as the cost and usage reports. The monthly chart displays your RI coverage for the previous 12 months, listed by month. It uses the same filters and options as the Cost and Usage reports.

Saving a Report

After you have finished editing the Cost Explorer settings for your new report, choose Save as.... Enter a name for your report and choose Save Report.