5.3.9. 激活和失活卷组

当您创建一个卷组时，默认情况下它是激活的。这就是说该组中的逻辑卷是可访问，也可修改的。

There are various circumstances for which you need to make a volume group inactive and thus unknown to the kernel. To deactivate or activate a volume group, use the -a (--available) argument of the vgchange command.

The following example deactivates the volume group my_volume_group.

vgchange -a n my_volume_group

# vgchange -a n my_volume_group

如果启用了群集的锁定，添加‘e’来激活或者失活完全占据一个节点的卷组，或者添加‘l’来激活或者失活只位于本地节点的卷组。带单一主机快照的逻辑卷总是被完全激活，因为他们一次只能在一个节点上使用。

You can deactivate individual logical volumes with the lvchange command, as described in 第 5.4.10 节 “修改逻辑卷组的参数”, For information on activating logical volumes on individual nodes in a cluster, see 第 5.7 节 “在群集的独立节点中激活逻辑卷”.