资源管理器负责管理可恢复数据，例如文件或队列。
A resource manager is responsible for managing recoverable data, such as files or queues.
她的职责包括进行备份、在需要时恢复数据库、进行存储管理并运行跟踪。
Her responsibilities include taking backups, restoring the database when required, storage management, and running traces.
在数据库管理中，数据备份是保证系统安全的一项重要措施，在意外情况发生时，可以依靠备份数据来恢复数据库。
In the management of database, data backup is an important measure to guarantee the security of the database. And backup data can restore the database in case unexpected incident happens.
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