LVM是 Logical Volume Manager(逻辑卷管理)的简写，它由Heinz Mauelshagen在Linux 2.4内核上实现。LVM将一个或多个硬盘的分区在逻辑上集合，相当于一个大硬盘来使用，当硬盘的空间不够使用的时候，可以继续将其它的硬盘的分区加入其中，这样可以实现磁盘空间的动态管理，相对于普通的磁盘分区有很大的灵活性。(LVM is shorthand for Logical Volume Manager (logical volume management), which is implemented by Heinz Mauelshagen on the Linux 2.4 kernel. LVM one or more disk partitions in logic set, the equivalent of a large hard disk to use when using the hard disk space is not enough, can continue to other disk partitions to join them, so you can achieve the dynamic management of disk space, compared with the ordinary disk partition has great flexibility.)