AWS Cost Comparison¶

AWS Cost Comparison allows you to calculate the cost of hosting the currently discovered hosts in the project in an AWS region of your choice. This is calculated based on the AWS cost sheet for the region and considers the compute, storage, network, business support, and VDI costs (if the discovered host runs a Windows desktop operating system).

Prerequisite¶

In order to use this feature, the "Target Cloud" for the project should be "AWS", and it calculates the cost for the region set in "Preferred region".

Project Settings

View AWS Cost Comparison¶

You can navigate to the AWS Cost Comparison page by clicking Rationalize Cost in the DART page as shown below:

Cost from DART

You can also navigate to the AWS Cost Comparison page by clicking the AWS Cost Comparison tab in the Rationalize page as shown below:

Cost from Rationalize

Understanding and Using AWS Cost Comparison¶

Cost Calculation¶

Once the hosts have been added to the project and discovered, or RVTools data imported into the project, the cost for migrating the workloads to your desired AWS region is calculated based on the discovered hosts' CPU, memory, operating system, storage, etc., using the specified region's cost sheet. The calculated cost is displayed in the AWS Cost Comparison page as shown below:

Calculated Cost

View Estimation Approach¶

You can view the approach used to calculate the cost by clicking on the ? icon as shown below:

Cost Get Estimation Approach

This will open the following page where you can view the approach. You can expand each section to understand the details:

Cost Estimation Details

Edit Cost Details¶

You can use the Edit Details feature to edit the costs calculated by CHAI™, and to input the VMware costs (pre-Broadcom acquisition) and the revised VMware costs (post-Broadcom acquisition). The revised VMware cost is used to calculate the savings of moving from the existing VMware environment to AWS.

Click Edit Details as shown in the image below. That will take you to the screen where you can enter the various costs as shown in the second image below:

Cost Get to Edit

Cost Edit Page

You can enter the different costs and once updated, click the Save changes button.

The changes will get saved and you will receive a notification:

Cost Saved

Cost Tiles¶

You will see tiles highlighting the total AWS annual costs, savings, number of hosts, the date it was updated, and the region this is calculated for as shown below:

Cost Tiles

Override Instance Type¶

CHAI™ identifies the instance types to use in AWS for the different hosts based on the CPU, memory, etc. These are also used to calculate the costs. You can override the instance type and choose a different one. This will lead to a change in the cost calculated.

You can change the instance type by clicking the Host tab and clicking the Edit host details button:

Host Edit Details

Select the desired instance type from the Selected aws instance type column dropdown:

Host Change Instance Type

Once selected, click Save changes:

Host Save Changes

The changes made are saved:

Host Changes Saved

Navigate back to the AWS Cost Comparison tab to view the updated AWS cost.

Change AWS Region¶

If you want to check the costs for a different AWS region, you can edit the project properties, change the region to the one you are interested in, and visit the AWS Cost Comparison page to view the costs in that region.