2.2. 逻辑卷

Volume management creates a layer of abstraction over physical storage, allowing you to create logical storage volumes. This provides much greater flexibility in a number of ways than using physical storage directly. With a logical volume, you are not restricted to physical disk sizes. In addition, the hardware storage configuration is hidden from the software so it can be resized and moved without stopping applications or unmounting file systems. This can reduce operational costs.

逻辑卷在直接使用物理存储时有以下优势：

本文档的以下内容对在 LVM 中实施这些特性进行了论述。