backing storage

例句：

1. 1. Thebackup storage system is designed to protect criticaldata in case of a power outage.
   备份存储系统旨在在电力中断时保护关键数据。
2. 2. The company relies on its backing storage to store large amounts of datafor future use.
   该公司依靠其备份存储来存储大量数据以备将来使用。
3. 3. Thebackup storage was crucial during the recent databreach incident.
   在最近的一次数据泄露事件中，备份存储起到了至关重要的作用。