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
