云平台磁盘扩容-以及故障解决

云平台磁盘扩容

#步骤


需求：原先40G--扩容到45G




1.云盘--扩容


2.扩容方式

在线扩容
离线扩容

3.付款支付

4.查看扩容是否成功

partprobe     #tips：这里如果不显示的话，你需要加载一下磁盘

df -h

磁盘扩容不显示？

思路：

安装分区工具 -> 调整分区大小 -> 调整文件系统大小



解决：




yum  -y install cloud-utils-growpart     安装云分区工具

growpart /dev/vda 1                      调整分区大小


resize2fs /dev/vda1                       调整文件系统大小






具体效果演示：

[root@tomcat2 attachment]# df -h
Filesystem                                       Size  Used Avail Use% Mounted on
devtmpfs                                         233M     0  233M   0% /dev
tmpfs                                            244M     0  244M   0% /dev/shm
tmpfs                                            244M  444K  243M   1% /run
tmpfs                                            244M     0  244M   0% /sys/fs/cgroup
/dev/vda1                                         40G  3.4G   35G   9% /
363e1495d9-yqg71.cn-shanghai.nas.aliyuncs.com:/   10P  3.0M   10P   1% /data/tomcat/webapps/ROOT/attachment
tmpfs                                             49M     0   49M   0% /run/user/0
[root@tomcat2 attachment]# yum  -y install cloud-utils-growpart
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base                                                                                | 3.6 kB  00:00:00     
epel                                                                                | 4.7 kB  00:00:00     
extras                                                                              | 2.9 kB  00:00:00     
updates                                                                             | 2.9 kB  00:00:00     
(1/2): epel/x86_64/updateinfo                                                       | 1.0 MB  00:00:00     
(2/2): epel/x86_64/primary_db                                                       | 7.0 MB  00:00:00     
Package cloud-utils-growpart-0.29-5.el7.noarch already installed and latest version
Nothing to do
[root@tomcat2 attachment]# growpart /dev/vda 1
CHANGED: partition=1 start=2048 old: size=83883999 end=83886047 new: size=94369759 end=94371807
[root@tomcat2 attachment]# 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 = 3
The filesystem on /dev/vda1 is now 11796219 blocks long.

[root@tomcat2 attachment]# df -h
Filesystem                                       Size  Used Avail Use% Mounted on
devtmpfs                                         233M     0  233M   0% /dev
tmpfs                                            244M     0  244M   0% /dev/shm
tmpfs                                            244M  444K  243M   1% /run
tmpfs                                            244M     0  244M   0% /sys/fs/cgroup
/dev/vda1                                         45G  3.4G   39G   8% /
363e1495d9-yqg71.cn-shanghai.nas.aliyuncs.com:/   10P  3.0M   10P   1% /data/tomcat/webapps/ROOT/attachment
tmpfs                                             49M     0   49M   0% /run/user/0