Which statement about SmartMigration functions is false during a SmartMigration-based migration?

If multiple LUNs are used by a service, the LUNs must undergo a consistency splitting after the migration.

If multiple LUNs are used by a service, consistency splitting cannot be performed before stopping services.

For higher migration speed and storage performance, a migration task can be deleted as soon as it is completed.

It is recommended to perform consistency splitting in off-peak hours.