Modifying the Properties of a SmartMove Task

Prerequisites

The running status of a SmartMove pair is Migrating, Paused, or Interrupted.

Procedure

1. Choose Resources > Tuning > SmartMove.
2. Click More on the right of a desired SmartMove pair and select Modify.

   The Modify SmartMove Task page is displayed.

3. Set migration properties for the SmartMove task. Table 1 describes related parameters.

   Table 1 Migration properties for the SmartMove task

   Parameter	Description
   Splitting Mode	Splitting mode of the SmartMove pair. Possible values are Automatic and Manual. Automatic After data synchronization is complete, the system automatically performs splitting. After the splitting is complete, the migration is complete. Manual After data synchronization is complete, you need to manually perform splitting. After the splitting is complete, the migration is complete.
   Default Migration Rate	Data migration rate of the SmartMove pair. Possible values are Low, Medium, High, Highest, and Custom. Low Migration takes a relatively long period of time. This value is used when the service load is heavy. The rate is less than or equal to 2 MB/s. Medium Migration takes a relatively short period of time. This value is used when the service load is relatively heavy. The rate is less than or equal to 15 MB/s. High Migration takes a short period of time. This value is used when the service load is relatively light. The rate is less than or equal to 60 MB/s. Highest Migration takes the shortest period of time. This value is used when the service load is light. The rate is less than or equal to 500 MB/s. Custom You can set the migration rate as required. The value ranges from 1 MB/s to 1024 MB/s. NOTE: The migration rate is affected by the volume read and write performance and the link bandwidth. Higher migration rates impose greater impact on host service performance. If you choose Highest, the SmartMove task may be interrupted due to heavy service load. You are advised to use the highest rate when the host service is not running.

4. (Optional) Enable Specify Time to specify the migration rate for specified time.
   

   • The migration rate for specified time applies to only the specified period. The migration rate of other periods remains the default. This parameter takes effect only when data is being migrated during the period.

     Suppose that, from 2023-03-08 to 2023-04-24, you want to migrate data at a high rate for one hour starting from 23:00 and at the default rate in other periods every day. The parameter settings are as follows:

     • Date: 2023-03-08 to 2023-04-24
     • Start Time: 23:00
     • Duration: 1 hours 0 minutes
     • Migration Rate for Specified Time: High
   • For details about Migration Rate for Specified Time, see the Default Migration Rate parameter.

5. Click OK.