secondary file

Data files should not be put on compressed file systems unless the files are read-only secondary files, or if the database is read-only.

不应将数据文件放在压缩文件系统中，除非这些文件是只读辅助文件或该数据库是只读的。

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In very general terms, a secondary storage device can be thought of as a file cabinet.

在非常一般的术语中, 一个次级储藏设备可以被看作是一个文件柜.

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A segment of this boot. b file is written to the MBR ( the primary part of the boot loader), which then points to the map and subsequently points to the secondary boot loader.

b文件的一个片段被写入到MBR（引导加载程序的主要部分），它会指向那个映射，接下来指向二级引导加载程序。

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Changes secondary database settings such as source and destination directory, and file retention period.

更改辅助数据库设置，例如源目录、目标目录和文件保持期。

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Fifthly, in order to decrease the waste of system performance in file integrity verifying, an integrity verifying mechanism based on secondary HMAC is introduced.

第五，提出了一种基于二级HMAC的文件完整性校验机制，有效降低了完整性校验时系统性能损耗。

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