阿里云扩容云盘（CentOS 7系统）

妖狐艹你老母 2023-10-07 17:42 26阅读 0赞

## 一、前文 ##

*  阿里云ECS服务器，原本购买了40GB的云盘，用了不到一年，就不够用了
 *  只能加钱扩容了
 *  扩容后发现好像没生效，只能花时间研究研究

![在这里插入图片描述][b51c14a16bf842d3acd50b804246e2df.png]  
![在这里插入图片描述][9ad7e7c7d08d4bff948ee9b37049ebe5.png]  
![在这里插入图片描述][20fb886d0fc94c49ad38a252bca733ab.png]

## 二、查看分区容量 ##

![在这里插入图片描述][fc9cc26591b84ae4b47483ed3e9f80f2.png]

[root@iZ2zej1nogjvot6f4dzt6eZ var]# fdisk -lu
    
    Disk /dev/vda: 107.4 GB, 107374182400 bytes, 209715200 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk label type: dos
    Disk identifier: 0x0002b49c
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *        2048    83886046    41941999+  83  Linux

![在这里插入图片描述][4418190a626944a1af48d17cbf0f85e4.png]

[root@iZ2zej1nogjvot6f4dzt6eZ var]# df -Th
    Filesystem     Type      Size  Used Avail Use% Mounted on
    devtmpfs       devtmpfs  3.7G     0  3.7G   0% /dev
    tmpfs          tmpfs     3.7G     0  3.7G   0% /dev/shm
    tmpfs          tmpfs     3.7G  880K  3.7G   1% /run
    tmpfs          tmpfs     3.7G     0  3.7G   0% /sys/fs/cgroup
    /dev/vda1      ext4       40G   23G   16G  60% /
    tmpfs          tmpfs     756M     0  756M   0% /run/user/0
    overlay        overlay    40G   23G   16G  60% /var/lib/docker/overlay2/e79cb8bc0017b936119a0b697d82a082f7a44edd0b8fdbb943d6323c75769bd1/merged
    tmpfs          tmpfs     756M     0  756M   0% /run/user/1000

## 三、扩容分区 ##

![在这里插入图片描述][watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5bCP5bq35biI5YWE_size_20_color_FFFFFF_t_70_g_se_x_16]

[root@iZ2zej1nogjvot6f4dzt6eZ var]# yum install gdisk -y
    Loaded plugins: fastestmirror
    Determining fastest mirrors
    base                                                                                                                                                | 3.6 kB  00:00:00     
    docker-ce-stable                                                                                                                                    | 3.5 kB  00:00:00     
    emqx-ce-stable                                                                                                                                      | 2.9 kB  00:00:00     
    epel                                                                                                                                                | 4.7 kB  00:00:00     
    extras                                                                                                                                              | 2.9 kB  00:00:00     
    influxdb                                                                                                                                            | 2.5 kB  00:00:00     
    mysql-connectors-community                                                                                                                          | 2.6 kB  00:00:00     
    mysql-tools-community                                                                                                                               | 2.6 kB  00:00:00     
    mysql57-community                                                                                                                                   | 2.6 kB  00:00:00     
    updates                                                                                                                                             | 2.9 kB  00:00:00     
    (1/11): epel/x86_64/group_gz                                                                                                                        |  96 kB  00:00:00     
    (2/11): epel/x86_64/updateinfo                                                                                                                      | 1.0 MB  00:00:00     
    (3/11): extras/7/x86_64/primary_db                                                                                                                  | 243 kB  00:00:00     
    (4/11): docker-ce-stable/x86_64/primary_db                                                                                                          |  70 kB  00:00:00     
    (5/11): epel/x86_64/primary_db                                                                                                                      | 7.0 MB  00:00:00     
    (6/11): mysql-tools-community/x86_64/primary_db                                                                                                     |  92 kB  00:00:00     
    (7/11): mysql-connectors-community/x86_64/primary_db                                                                                                |  87 kB  00:00:00     
    (8/11): updates/7/x86_64/primary_db                                                                                                                 |  13 MB  00:00:00     
    (9/11): influxdb/7/x86_64/primary_db                                                                                                                |  60 kB  00:00:01     
    (10/11): mysql57-community/x86_64/primary_db                                                                                                        | 288 kB  00:00:01     
    (11/11): emqx-ce-stable/primary_db                                                                                                                  | 1.1 MB  00:00:05     
    Resolving Dependencies
    --> Running transaction check
    ---> Package gdisk.x86_64 0:0.8.10-3.el7 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    ===========================================================================================================================================================================
     Package                                Arch                                    Version                                        Repository                             Size
    ===========================================================================================================================================================================
    Installing:
     gdisk                                  x86_64                                  0.8.10-3.el7                                   base                                  190 k
    
    Transaction Summary
    ===========================================================================================================================================================================
    Install  1 Package
    
    Total download size: 190 k
    Installed size: 660 k
    Downloading packages:
    gdisk-0.8.10-3.el7.x86_64.rpm                                                                                                                       | 190 kB  00:00:00     
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : gdisk-0.8.10-3.el7.x86_64                                                                                                                               1/1 
      Verifying  : gdisk-0.8.10-3.el7.x86_64                                                                                                                               1/1 
    
    Installed:
      gdisk.x86_64 0:0.8.10-3.el7                                                                                                                                              
    
    Complete!

![在这里插入图片描述][8fb94c0190a144068893263022078daf.png]

[root@iZ2zej1nogjvot6f4dzt6eZ var]# growpart /dev/vda 1
    CHANGED: partition=1 start=2048 old: size=83883999 end=83886047 new: size=209713119 end=209715167

## 四、扩容文件系统 ##

![在这里插入图片描述][f13ca39f75a845d2950e16c055c531bf.png]

[root@iZ2zej1nogjvot6f4dzt6eZ var]# resize2fs /dev/vda1    
    resize2fs 1.42.9 (28-Dec-2013)
    Filesystem at /dev/vda1 is mounted on /; on-line resizing required
    old_desc_blocks = 3, new_desc_blocks = 7
    The filesystem on /dev/vda1 is now 26214139 blocks long.

![在这里插入图片描述][3f134505a8ad4340aba549f2292d764b.png]

[root@iZ2zej1nogjvot6f4dzt6eZ var]# df -Th
    Filesystem     Type      Size  Used Avail Use% Mounted on
    devtmpfs       devtmpfs  3.7G     0  3.7G   0% /dev
    tmpfs          tmpfs     3.7G     0  3.7G   0% /dev/shm
    tmpfs          tmpfs     3.7G  880K  3.7G   1% /run
    tmpfs          tmpfs     3.7G     0  3.7G   0% /sys/fs/cgroup
    /dev/vda1      ext4       99G   23G   72G  24% /
    tmpfs          tmpfs     756M     0  756M   0% /run/user/0
    overlay        overlay    99G   23G   72G  24% /var/lib/docker/overlay2/e79cb8bc0017b936119a0b697d82a082f7a44edd0b8fdbb943d6323c75769bd1/merged
    tmpfs          tmpfs     756M     0  756M   0% /run/user/1000

## 五、最后验证 ##

成功，撒花  
![在这里插入图片描述][30c0bf5d7b9c4090becbee387323efa1.png]

***觉得好，就一键三连呗（点赞+收藏+关注）***

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