centos7lvcreate
时间: 2023-11-01 21:55:07 浏览: 94
在CentOS 7上创建逻辑卷(lvcreate)的步骤如下:
1. 首先,您需要创建一个卷组(vg),可以使用vgcreate命令创建。例如,使用以下命令创建名为vg_zjl的卷组:
>> vgcreate vg_zjl /dev/sdb1
2. 然后,使用lvcreate命令创建逻辑卷。例如,使用以下命令在vg_zjl卷组下创建一个大小为100M的逻辑卷lv_zjl:
>> lvcreate -L 100M -n lv_zjl vg_zjl
3. 接下来,您可以使用lvdisplay命令查看刚刚创建的逻辑卷的详细信息:
>> lvdisplay /dev/vg_zjl/lv_zjl
请注意,上述命令中的"/dev/sdb1"是一个示例磁盘位置和名称,您可以根据实际情况替换为自己的磁盘。
引用的内容提供了在vg_zjl卷组下创建逻辑卷的命令和查看逻辑卷详细信息的命令。
引用的内容提供了创建物理卷(pv)的命令。
希望这能帮到您!如果还有其他问题,请随时提问。
相关问题
centos7 lvm
CentOS 7 supports Logical Volume Manager (LVM), which is a flexible and powerful storage system. LVM allows you to manage your storage devices, such as hard drives or partitions, by creating logical volumes that can span across multiple physical volumes.
To use LVM in CentOS 7, follow these steps:
1. Install the required packages:
```
# yum install lvm2
```
2. Create physical volumes (PVs) by initializing the storage devices:
```
# pvcreate /dev/sdX
```
3. Create a volume group (VG) that will contain the physical volumes:
```
# vgcreate vg_name /dev/sdX
```
4. Create logical volumes (LVs) within the volume group:
```
# lvcreate -L size -n lv_name vg_name
```
Replace `size` with the desired size of the logical volume and `lv_name` with the name you want to give to the logical volume.
5. Format the logical volume with a file system:
```
# mkfs.filessystem /dev/vg_name/lv_name
```
Replace `filesystem` with the desired file system type, such as ext4.
6. Mount the logical volume to a directory:
```
# mount /dev/vg_name/lv_name /mnt/mount_point
```
Replace `/mnt/mount_point` with the directory where you want to mount the logical volume.
You can now use the logical volume for your storage needs. Remember to update your `/etc/fstab` file if you want the logical volume to be mounted automatically on system boot.
Note: Make sure to replace `/dev/sdX` with the actual device name of your storage device.
centos7 逻辑卷
CentOS 7操作系统支持逻辑卷(Logical Volume)的创建和管理。逻辑卷是建立在卷组(Volume Group)之上的,可以在逻辑卷上创建文件系统来存储数据。
要创建一个逻辑卷,可以使用lvcreate命令。例如,使用命令"lvcreate -l 128"可以将逻辑卷的大小确定为正好128个范围的大小。具体的字节总数取决于基础物理卷上物理范围块的大小。
在CentOS 7中,可以使用lvdisplay命令来查看逻辑卷的信息,包括逻辑范围数(Current LE)。逻辑范围通常映射到卷组中的物理范围,并且因此映射到物理卷。
通过扩展逻辑卷和XFS文件系统,可以增加逻辑卷的容量和扩展文件系统的大小。这可以通过使用lvextend和xfs_growfs命令来实现。具体的步骤可以参考相关的文档和教程。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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