Usually media failure is caused by either the complete loss of a data file or an SCN timestamp being out of sync with the rest of the database.

通常，导致媒介失败的原因是数据文件的完全丢失，或者SCN时间戳与数据库的其余部分不同步。

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This mode provides less protection against transaction loss than SYNC, in exchange for a shorter transaction response time than SYNC mode.

此模式虽然比SYNC模式提供较少的事务丢失保护，但比SYNC模式的事务响应时间要短一些。

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Usually media failure is caused by either the complete loss of a data file or a system change number (SCN) time stamp being out of sync with the rest of the database.

通常媒体故障是由于数据文件完全丢失或系统更改编号（System Change Number，SCN）时间戳与数据库的其余部分不同步造成的。

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Usually media failure is caused by either the complete loss of a data file or a system change number (SCN) time stamp being out of sync with the rest of the database.

通常媒体故障是由于数据文件完全丢失或系统更改编号（System Change Number，SCN）时间戳与数据库的其余部分不同步造成的。

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