You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
|
lvcreate
|
|
|
|
|
|
===
|
|
|
|
|
|
|
|
|
|
|
|
用于创建LVM的逻辑卷
|
|
|
|
|
|
|
|
|
|
|
|
## 补充说明
|
|
|
|
|
|
|
|
|
|
|
|
**lvcreate命令** 用于创建LVM的逻辑卷。逻辑卷是创建在卷组之上的。逻辑卷对应的设备文件保存在卷组目录下，例如：在卷组"vg1000"上创建一个逻辑卷"lvol0"，则此逻辑卷对应的设备文件为"/dev/vg1000/lvol0"。
|
|
|
|
|
|
|
|
|
|
|
|
### 语法
|
|
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
lvcreate(选项)(参数)
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
### 选项
|
|
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
-L：指定逻辑卷的大小，单位为“kKmMgGtT”字节；
|
|
|
|
|
|
-l：指定逻辑卷的大小（LE数）。
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
### 参数
|
|
|
|
|
|
|
|
|
|
|
|
逻辑卷：指定要创建的逻辑卷名称。
|
|
|
|
|
|
|
|
|
|
|
|
### 实例
|
|
|
|
|
|
|
|
|
|
|
|
使用lvcreate命令在卷组"vg1000"上创建一个200MB的逻辑卷。在命令行中输入下面的命令：
|
|
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
[root@localhost ~]# lvcreate -L 200M vg1000 #创建大小为200M的逻辑卷
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
输出信息如下：
|
|
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
Logical volume "lvol0" created
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
说明：创建成功后，新的逻辑卷"lvol0"，将通过设备文件`/dev/vg1000/lvol0`进行访问。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<!-- Linux命令行搜索引擎：https://jaywcjlove.github.io/linux-command/ -->
|
