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vgscan
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===
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扫描并显示系统中的卷组
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## 补充说明
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**vgscan命令** 查找系统中存在的LVM卷组，并显示找到的卷组列表。vgscan命令仅显示找到的卷组的名称和LVM元数据类型，要得到卷组的详细信息需要使用vgdisplay命令。
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### 语法
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```
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vgscan(选项)
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```
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### 选项
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```
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-d：调试模式；
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--ignorerlockingfailure：忽略锁定失败的错误。
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```
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### 实例
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使用vgscan命令扫描系统中所有的卷组。在命令行中输入下面的命令：
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```
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[root@localhost ~]# vgscan #扫描并显示LVM卷组列表
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```
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输出信息如下：
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```
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Found volume group "vg2000" using metadata type lvm2
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Found volume group "vg1000" using metadata type lvm2
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```
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说明：本例中，vgscan指令找到了两个LVM2卷组"vg1000"和"vg2000"。
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<!-- Linux命令行搜索引擎：https://jaywcjlove.github.io/linux-command/ -->
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