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vgreduce
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===
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从卷组中删除物理卷
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## 补充说明
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**vgreduce命令** 通过删除LVM卷组中的物理卷来减少卷组容量。不能删除LVM卷组中剩余的最后一个物理卷。
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### 语法
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```
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vgreduce(选项)(参数)
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```
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### 选项
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```
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-a：如果命令行中没有指定要删除的物理卷，则删除所有的空物理卷；
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--removemissing：删除卷组中丢失的物理卷，使卷组恢复正常状态。
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```
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### 参数
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* 卷组：指定要操作的卷组名称；
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* 物理卷列表：指定要删除的物理卷列表。
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### 实例
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使用vgreduce命令从卷组"vg2000"中移除物理卷`/dev/sdb2`。在命令行中输入下面的命令：
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```
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[root@localhost ~]# vgreduce vg2000 /dev/sdb2 #将物理卷"/dev/sdb2"从卷组"vg2000"中删除
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```
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输出信息如下：
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```
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Removed "/dev/sdb2" from volume group "vg2000"
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```
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<!-- Linux命令行搜索引擎：https://jaywcjlove.github.io/linux-command/ -->
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