mirror of
https://github.com/LCTT/TranslateProject.git
synced 2025-01-25 23:11:02 +08:00
translating
This commit is contained in:
geekpi
parent
86e417db90
commit
a91462b831
@ -7,53 +7,54 @@
|
||||
[#]: via: (https://www.2daygeek.com/extend-increase-resize-lvm-logical-volume-in-linux/)
|
||||
[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/)
|
||||
|
||||
How to Extend/Increase LVM’s (Logical Volume Resize) in Linux
|
||||
如何在 Linux 中扩展/增加 LVM 大小（逻辑卷调整）？
|
||||
======
|
||||
|
||||
Expanding the logical volume is extremely easy, it takes very few steps and can be done online without unmounting a certain logical volume.
|
||||
扩展逻辑卷非常简单，只需要很少的步骤，而且不需要卸载某个逻辑卷就可以在线完成。
|
||||
|
||||
The main purpose of LVM is flexible disk management, which allows you to easily resize, extend and reduce the logical volume size when you need it.
|
||||
LVM 的主要目的是灵活的磁盘管理，当你需要的时候，可以很方便地调整、扩展和缩小逻辑卷的大小。
|
||||
|
||||
If you are new to Logical Volume Management (LVM), I suggest you start with our previous article.
|
||||
如果你是逻辑卷管理 （LVM） 新手，我建议你从我们之前的文章开始学习。
|
||||
|
||||
* **Part-1: [How to Create/Configure LVM (Logical Volume Management) in Linux][1]**
|
||||
* **第一部分：[如何在 Linux 中创建/配 置LVM（逻辑卷管理）][1]**
|
||||
|
||||
|
||||
|
||||
![][2]
|
||||
|
||||
Expanding the logical volume involves the below steps.
|
||||
扩展逻辑卷涉及到以下步骤：
|
||||
|
||||
* Check if you have sufficient unallocated disk space in the volume group where the LV was residing.
|
||||
* If yes, you can use that space to extend the logical volume.
|
||||
* If not, add new disks or LUNs to your system.
|
||||
* Convert a physical disk as a physical volume (PV).
|
||||
* Extend the Volume Group
|
||||
* Increase the logical Volume
|
||||
* Grow the filesystem
|
||||
* Check the extended filesystem size
|
||||
|
||||
* 检查 LV 所在的卷组中是否有足够的未分配磁盘空间
|
||||
* 如果有，你可以使用这些空间来扩展逻辑卷
|
||||
* 如果没有，请向系统中添加新的磁盘或 LUN
|
||||
* 将物理磁盘转换为物理卷（PV）
|
||||
* 扩展卷组
|
||||
* 增加逻辑卷大小
|
||||
* 扩大文件系统
|
||||
* 检查扩展的文件系统大小
|
||||
|
||||
|
||||
|
||||
### How to Create LVM Physical Volumes
|
||||
### 如何创建 LVM 物理卷？
|
||||
|
||||
Create LVM physical volumes with the pvcreate command.
|
||||
使用 pvcreate 命令创建 LVM 物理卷。
|
||||
|
||||
Once the disk is detected in the OS, use the pvcreate command to initialize the LVM PV (Physical Volumes).
|
||||
当在操作系统中检测到磁盘，使用 pvcreate 命令初始化 LVM PV（物理卷）。
|
||||
|
||||
```
|
||||
# pvcreate /dev/sdc
|
||||
Physical volume "/dev/sdc" successfully created
|
||||
```
|
||||
|
||||
**Make a note:**
|
||||
**请注意：**
|
||||
|
||||
* The above command erases any data on the given disk /dev/sdc.
|
||||
* Physical disk can be added directly into the LVM PV instead of the disk partition.
|
||||
* 上面的命令将删除磁盘 /dev/sdc 上的所有数据。
|
||||
* 物理磁盘可以直接添加到 LVM PV 中，而不是磁盘分区。
|
||||
|
||||
|
||||
|
||||
Use the pvdisplay command to display the PVs you have created.
|
||||
使用 pvdisplay 命令来显示你所创建的 PV。
|
||||
|
||||
```
|
||||
# pvdisplay /dev/sdc
|
||||
@ -71,16 +72,16 @@ Allocated PE 0
|
||||
PV UUID 69d9dd18-36be-4631-9ebb-78f05fe3217f
|
||||
```
|
||||
|
||||
### How to Extend the Volume Group
|
||||
### 如何扩展卷组
|
||||
|
||||
Use the following command to add a new physical volume to the existing volume group.
|
||||
使用以下命令在现有的卷组中添加一个新的物理卷。
|
||||
|
||||
```
|
||||
# vgextend vg01 /dev/sdc
|
||||
Volume group "vg01" successfully extended
|
||||
```
|
||||
|
||||
Use the vgdisplay command to display the PVs you have created.
|
||||
使用 vgdisplay 命令来显示你所创建的 PV。
|
||||
|
||||
```
|
||||
# vgdisplay vg01
|
||||
@ -106,17 +107,17 @@ Free PE / Size 2560 / 9.99 GiB
|
||||
VG UUID d17e3c31-e2c9-4f11-809c-94a549bc43b7
|
||||
```
|
||||
|
||||
### How to Extend the Logical Volume
|
||||
### 如何扩展逻辑卷？
|
||||
|
||||
Use the following command to increase the existing logical volume.
|
||||
使用以下命令增加现有逻辑卷大小。
|
||||
|
||||
**Common syntax for logical volume extension (lvextend).**
|
||||
**逻辑卷扩展 （lvextend） 的常用语法。**
|
||||
|
||||
```
|
||||
lvextend [Additional space to be added] [Existing Logical Volume Name]
|
||||
lvextend [要增加的额外空间] [现有逻辑卷名称]
|
||||
```
|
||||
|
||||
Use the below command to increase the existing logical volume additionally to 10GB.
|
||||
使用下面的命令将现有的逻辑卷增加 10GB。
|
||||
|
||||
```
|
||||
# lvextend -L +10G /dev/mapper/vg01-lv002
|
||||
@ -125,33 +126,33 @@ Size of logical volume vg01/lv002 changed from 5.00 GiB (1280 extents) to 15.00
|
||||
Logical volume var successfully resized
|
||||
```
|
||||
|
||||
To extend logical volume using PE size’s.
|
||||
使用 PE 大小来扩展逻辑卷。
|
||||
|
||||
```
|
||||
# lvextend -l +2560 /dev/mapper/vg01-lv002
|
||||
```
|
||||
|
||||
To extend the logical volume using percentage (%), use the following command.
|
||||
要使用百分比 （%） 扩展逻辑卷，请使用以下命令。
|
||||
|
||||
```
|
||||
# lvextend -l +40%FREE /dev/mapper/vg01-lv002
|
||||
```
|
||||
|
||||
Now, the logical volume is extended and you need to resize the file system to extend the space inside the logical volume.
|
||||
现在，逻辑卷已经扩展，你需要调整文件系统的大小以扩展逻辑卷内的空间。
|
||||
|
||||
For an ext3 and ext4 based file system, run the following command.
|
||||
对于基于 ext3 和 ext4 的文件系统，运行以下命令。
|
||||
|
||||
```
|
||||
# resize2fs /dev/mapper/vg01-lv002
|
||||
```
|
||||
|
||||
For the xfs file system, use the following command.
|
||||
对于xfs文件系统，使用以下命令。
|
||||
|
||||
```
|
||||
# xfs_growfs /dev/mapper/vg01-lv002
|
||||
```
|
||||
|
||||
Use the **[df command][3]** to view the file system size.
|
||||
使用 **[df 命令][3]**查看文件系统大小。
|
||||
|
||||
```
|
||||
# df -h /lvmtest1
|
||||
@ -165,7 +166,7 @@ via: https://www.2daygeek.com/extend-increase-resize-lvm-logical-volume-in-linux
|
||||
|
||||
作者：[Magesh Maruthamuthu][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
译者：[geekpi](https://github.com/geekpi)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
Loading…
Reference in New Issue
Block a user