现在，我们可以从主要计算机上备份数据库，并将其还原到备用计算机上。

Now, it is time to backup the database from your primary machine and restore it on the standby.

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增量备份非常合理，因为它们减少了还原数据库服务器所需的时间。

Incremental backups are reasonable because they reduce the time needed to restore the database server.

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举例来说，亚马逊关系数据库服务amazon Relational Database Service (RDS)提供了无数据丢失的自动备份和还原服务。

For example, the Amazon Relational Database Service (RDS) provides automatic backup and recovery with virtually no data loss.

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