The grid file system needs to not only store chunks, but also metadata information, such as directories, files, file sizes, last modification times and so on.

这个网格文件系统不仅需要存储区块，还要存储元数据信息，像目录、文件名、文件大小、最后修改时间等。

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Remember that the comparison works on the filename, not the file system creation or modification date, and so the script is able to work with files that might have been created overnight.

请记住，比较操作针对于文件名，而不是文件系统的创建或修改日期，所以该脚本可以对头天晚上创建的文件进行操作。

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When the cache manager reconnects to the central servers, the system reintegrates the client modification log, making all file system updates available to the client.

当缓存管理器与中央服务器重新连接时，系统重建客户机修改日志，使所有的文件系统更新对客户机都可用。

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