Once the input is prepared, you can easily migrate an entire TCA deployment topology.
You can also use either of the following three approaches to perform migration operation:
Low Downtime Migration (Recommended)
Less User Intervention Migration
All the CLIs take the same input format. Also, TCA-M section is mandatory in the input for any of the CLIs.
The migration operation is idempotent and re-entrant. If the migration operation fails, you can fix the error and retry the migration. If you accidentally press ctrl+c or cancel the migration, retry the migration operation by using the same CLI command.