backup
Sharding Instance backup time. It is required when backup_period was existed. In the format of HH:mmZ- HH:mmZ. Time setting interval is one hour. If not set, the system will return a default, like "23:00Z-24:00Z".
Sharding Instance backup time. It is required when backup_period was existed. In the format of HH:mmZ- HH:mmZ. Time setting interval is one hour. If not set, the system will return a default, like "23:00Z-24:00Z".