Getting Target Recommendations

Prerequisites

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

Procedure

1. Log 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 numbers of resources that can be migrated and that have got target configurations as well as the list of applications in the current project.

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 assessment policy based on Table 1.

   Table 1 Parameters for configuring an assessment policy

   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.
   Sizing Criterion	Source specifications-based MgC recommends the most appropriate Huawei Cloud resources based on source resource specifications. Business scenario-based MgC recommends appropriate Huawei Cloud resources based on the business scenarios 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.
   Preference	Performance-first MgC recommends target resources based on your performance requirements. Price-first MgC recommends target resources based on your cost requirements.
   (Optional) Advanced Options	Configure preferences for target servers. The servers that match your preferences are recommended first. ECS Types Select the expected ECS types. System Disk Select the expected system disk type. Data Disk Select the expected data disk type. Match With Select a policy, which the system will follow during server recommendation. If you select Source specifications, the system recommends target servers with the same or as close CPU and memory configurations as possible to the source servers. If you select Source performance, you need to complete collecting performance data of source servers first, and then set assessment parameters. The system will then recommend target servers with your desired CPU and memory configurations. NOTICE: The more performance data is collected, the more accurate the assessment is. 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 on container resources.

7. Click Create Assessment. The assessment task is created. 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.
8. (Optional) Perform the following operations:
   • Modify recommended target configurations: You can modify recommended specifications of target servers and their disks.
   • Associate source servers with target servers: If you already have servers that match your requirements on Huawei Cloud, you can associate them with source servers.

Viewing the Assessment Results

In the application list on the Migration Solutions page, click View Target Configuration 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 selected 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 in the last 7 or 30 days. Click Analyze Performance to view the performance statistics of all servers.

Modifying Recommended Target Configurations

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 in the Target Specifications column. You can modify the disk type and capacity. Only Linux disk sizes can be decreased. If you decrease a disk size, the system will set Disk Size Decreased 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.
   • Only Linux disk sizes can be decreased, and decreased sizes must be larger than the used sizes of source disks.
   • In the cross-AZ migration scenario, disk sizes can only be increased. Even if you decrease disk sizes here, the settings will not be applied, and the system will create target disks as large as source disks.