Creating a Cross-AZ Migration Workflow

Prerequisites

• You have discovered servers by referring to Simple Project.
• Servers to be migrated have been added to an application, and the application servers have been assessed or associated with existing target servers. For details, see Grouping Resources as Applications and Getting Target Recommendations.

Procedure

1. Sign in to the MgC console.
2. In the navigation pane on the left, choose Migrate > Workflows. Select a migration project in the upper left corner of the page.
3. Click Create Workflow in the upper right corner of the page.
4. In the Cross-AZ Migration card, click Preview Steps to view the steps predefined in the template and the detailed description of each step. If the type of a step is Automated, the step is automatically performed by MgC. If the type of a step is Manual, you need to perform the step manually. Click Configure Workflow in the lower right corner.
5. Configure the workflow parameters listed in Table 1.

   Table 1 Parameters required for creating a cross-AZ migration workflow

   Region	Parameter	Description
   Workflow Details	Name	Enter a workflow name.
   	Description	Describe the workflow.
   Application	Application	Select the application which contains the servers to be migrated.
   Migration Settings	Target Region	Select the region where the source AZ is located. The region configured in the application is populated by default.
   	Target AZ	Select the AZ you want to migrate to. The configuration must be the same as that of the created application.
   	Target Network	Only Retain original is available.
   	Target Server	Create now. MgC creates backups and images for source servers, and uses the images to create target servers immediately after the workflow runs.
   	Stop Target Server	If you select Yes, target servers will be stopped after being created. If you select No, target servers will be started after being created.
   	Stop Source Server	If you select Yes, source servers will be stopped before incremental backups are created for them. This ensures data consistency as high as possible. If you select No, source servers remain running when incremental backups are created for them.
   	Create System Disk Image	If you select Yes, a system disk image will be created for each of the source servers. The images can be used to reinstall the OS for the paired target servers. If you select No, the system will not create system disk images for the source servers.
   Advanced Settings	Delete Intermediate Resources	If this function is enabled, intermediate resources generated during the migration, such as backups, snapshots, and images, will be deleted after the service cutover is complete.
   	Retain Primary NIC IP Addresses	If this function is enabled, the private and public IP addresses of the primary NIC on source servers will be retained on target servers, and random private IP addresses will be allocated to source servers. If a rollback is needed, it has to be performed manually.

6. Click Next: Confirm.
7. Confirm the workflow settings, and click Confirm. The Run Workflow dialog box is displayed, which indicates that the workflow has been created.
   • If you want to start the migration immediately, click Confirm to run the workflow.
   • If you want to add a stage or step to the workflow, click Cancel. The workflow enters a Waiting state, and the migration is not started. To start the migration, click Run in the Operation column.

8. On the migration workflow details page, view the workflow settings and the migration progress.
   • Move the cursor to the migration progress bar. In the box that is displayed, view more migration details.
   • When the migration progress bar reaches a step that requires manual confirmation, move the cursor to the progress bar and click Confirm next to the step status in the displayed window, so that the subsequent migration steps can be executed.