从aix早期开始，LVM就已经让磁盘、逻辑卷和文件系统的管理变得很轻松。

From the earliest days of AIX, the LVM has made management of disks, logical volumes, and file systems easy.

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Linux没有I/O管理器。所有 I/O请求从开始就进入文件系统（参见图2）。

There is no I/O manager in Linux: all I/O requests go to the file system at the beginning (see Figure 2).

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Linux没有I/O管理器。所有 I/O请求从开始就进入文件系统（参见图2）。

There is no I/O manager in Linux: all I/O requests go to the file system at the beginning (see Figure 2).

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