Using logical volume management lets you quickly add more disk capacity to your system without having to shuffle your data around.
通过使用逻辑卷管理工具，可以快速地在系统中增加磁盘容量，而不需要到处移动数据。
LVM is an AIX disk management system that maps the data between logical and physical storage.
LVM是一种AIX磁盘管理系统，它可以在逻辑和物理存储之间映射数据。
The main difficulty is that low-level management of disk partitions risks system integrity, if anything goes wrong.
主要困难在于，如果任何事情发生错误，那么磁盘分区的低级管理将危及系统完整性。
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