Step 4: Create an Application Assessment

Prerequisites

You have assessed the migration readiness of source resources and grouped them as applications.

Procedure

1. Sign in to the MgC console.
2. In the navigation pane on the left, choose Design > Migration Solutions. On the Migration Solutions page, you can view the list of applications created in the current project.
3. In the application list, locate the application you want to assess and click Assess in the Operation column.

   

4. In the Select Resources area, select the servers to be assessed in the application.
5. Configure an assessment policy based on Table 1.

   Table 1 Settings used for computing target recommendations

   Parameter	Option	Description
   Target Region	-	Select the region where you want to purchase resources on Huawei Cloud. You are advised to select a region close to your target users for lower network latency and quick access.
   Assessment Policy	Match source configuration	MgC will recommend Huawei Cloud resources in the same or similar size as source resources. For details about how MgC recommends appropriate target resources for you, see How Does MgC Generate Target Recommendations?
   	Match business scenario	MgC recommends appropriate Huawei Cloud resources based on the business scenario of source resources and Huawei Cloud best practices. For details about how MgC recommends appropriate target resources for you, see How Does MgC Generate Target Recommendations?
   Priority	High performance	MgC recommends target resources with optimal performance.
   	Low cost	MgC recommends the most cost-effective target servers that meet your demands.
   Preferences	Server Types (Optional)	Select the server types you prefer.
   	Server Series (Optional)	Select the server series you prefer. The system will generate recommendations based on your preferred server types and series. NOTICE: If you select Display only series allowed on DeHs, Server Types will be dimmed, and the server series allowed on DeHs in the target region will be listed.
   	System Disk (Optional)	Select the system disk type you prefer.
   	Data Disk (Optional)	Select the data disk type you prefer.
   	Sizing Criterion	Select the criteria that the system will follow for generating server recommendations. For details about how MgC recommends appropriate target resources for you, see How Does MgC Generate Target Recommendations?

6. Click Create Assessment. After the assessment task is complete, you can view the assessment results which include the recommended specifications of target resources. You can also view server performance data.
7. (Optional) Perform the following operations:
   • Modify the recommended target configurations as needed. You can change the server and disk specifications. Disk downsizing is supported.
   • Associate source servers with target servers. If based on the target server recommendations, you find that you already have servers that match your requirements on Huawei Cloud, you can associate them with source servers.

Viewing Target Recommendations

In the application list on the Migration Solutions page, click View Target Configurations in the Operation column.

In the Target Configurations area, you can view the specifications of Huawei Cloud resources recommended based on the source resource specifications and your preferences. It also gives you the ability to estimate what it will cost to run your services on Huawei Cloud.

Viewing Server Performance Data

On the Target Configurations page, in the server list, you can view the average CPU and memory usage of each server over the last 7 or 30 days. Click Performance Analysis to view the performance statistics of all servers.

Modifying Target Recommendations

1. In the Target Configurations area, locate the server that you want to modify the recommended target configurations for and click Modify Target Configuration in the Operation column.
2. Modify the specifications and image for the target server.

   

3. In the disk area, locate a disk and click Modify Specifications in the Target Specifications column. You can modify the disk type and capacity. You can downsize disks for Linux target servers based on the disk usage of the source servers. If you downsize a disk for the target server, the system will set Disk Downsized to Yes. The reverse also applies.
   

   • The system disk capacity ranges from 40 GB to 1,024 GB.
   • The data disk capacity ranges from 10 GB to 32,768 GB.
   • Disk downsizing is only available for Linux, and the decreased sizes must be larger than the used sizes of the source disks.
   • In the cross-AZ migration scenario, only disk upsizing is supported. Even if you choose to downsize disks here, the settings will not be applied, and the system will create target disks as large as source disks.