基于时间的恢复。

Time-based recovery.

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它提供了一个基于数天内的平均失效时间信息和数小时内的失效恢复信息的可用性特性。

This provides an availability figure based on mean time to failure information in days, and mean time to recover information in hours.

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因此，恢复要基于备份时间戳以确保能够恢复最后的备份映像，这样，就可以最小化数据丢失。

Therefore, the restore will be according to the backup timestamp to ensure the latest backup image is restored in order to minimize the loss of data.

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