Getting Target Recommendations

Prerequisites

You have discovered resources, and grouped the resources as applications.

Procedure

1. Sign in to the MgC console.
2. In the navigation pane on the left, choose Design > Migration Solutions. Select a migration project in the upper left corner of the page.

   On the Migration Solutions page, you can view how many source resources and applications are managed in the current migration project, as well as whether the source resources have been configured with target resources.

3. Click Assess in the Target Configuration card.
4. In the Select Application drop-down list, select the application you want to assess.
5. In the Select Resources area, select the application resources to be assessed.
6. Configure the policy used to compute target recommendations based on Table 1.

   Table 1 Settings used for computing target recommendations

   Parameter	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 recommends the right Huawei Cloud resources based on source resource specifications. Match business scenario MgC recommends the right Huawei Cloud resources based on the business scenario of source resources and Huawei Cloud best practices. Cross-AZ migration This policy only applies to migration of ECSs between AZs on Huawei Cloud, and MgC only assesses servers in the application. You need to select the target AZ you want to migrate to. For details about how the system recommends appropriate target resources, 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 resources that meet your demands.
   Preferences	Configure your preferences for target servers. Your preferences will be first attempted to be matched during the assessment. For details about how the system recommends appropriate target resources, see How Does MgC Generate Target Recommendations? 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 Criteria Choose the criteria that the system will use to generate server recommendations. If you select As-in on source, the system will recommend target servers with the same or as close CPU and memory capacity as the source servers. If you select Performance-based, you need to perform a performance collection for the source servers, and then set assessment parameters. The system will then recommend target servers with your desired CPU and memory capacity. NOTICE: The more performance data is collected, the more accurate the recommendations are. The collection of server performance data should take no less than seven days.
   	For the container assessment, configure parameters such as Cluster Type, Cluster Version, and Container Network Model for getting recommendations for container resources.

7. Click Create Assessment. After the assessment is complete, you can review the target recommendations. You can also view the performance data of source servers.
8. (Optional) Perform the following operations:
   • Modify target recommendations. You can modify the recommended specifications for target servers and their disks.
   • Associate source servers with target servers. If you find that you already have servers that match your requirements on Huawei Cloud based on the target server recommendations, you can associate them with source servers.
   • Associate source servers with DeHs if you want to migrate to Huawei Cloud DeH.

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.

   

Associating Source Servers with DeHs

After you associate source servers with DeHs, the system will automatically provision the recommended target servers on the DeHs if you:

• Buy these recommended target servers using a shopping list.
• Create migration workflows to migrate these source servers.

1. In the Target Configurations area, under Server, select the source server to be associated with the same DeH.
2. Choose DeH Configuration > Associate DeH above the list.
   Figure 1 Associating source servers with a DeH
   

3. Select the target DeH to be associated from the drop-down list and click Confirm. Associated will show up in the DeH column. You can click Details to view the associated DeH.