一、首先在阿里云后台通过在线扩容扩容硬盘
二、登录ecs下载阿里云gdisk工具
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# yum install gdisk –y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
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
Warning: RPMDB altered outside of yum.
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!
三、下载阿里云growpart工具
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# yum install cloud-utils-growpart –y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
–> Running transaction check
—> Package cloud-utils-growpart.noarch 0:0.29–5.el7 will be installed
–> Finished Dependency Resolution
Dependencies Resolved
===================================================================================================================
Package Arch Version Repository Size
===================================================================================================================
Installing:
cloud-utils-growpart noarch 0.29–5.el7 base 27 k
Transaction Summary
===================================================================================================================
Install 1 Package
Total download size: 27 k
Installed size: 61 k
Downloading packages:
cloud-utils-growpart-0.29–5.el7.noarch.rpm | 27 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : cloud-utils-growpart-0.29–5.el7.noarch 1/1
Verifying : cloud-utils-growpart-0.29–5.el7.noarch 1/1
Installed:
cloud-utils-growpart.noarch 0:0.29–5.el7
Complete!
四、运行growpart进行扩容分区
首先通过df -h查看当前硬盘挂载信息
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# df –h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 197G 4.9G 182G 3% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 504K 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vdb1 985G 846G 89G 91% /home
tmpfs 1.6G 0 1.6G 0% /run/user/0
发现/dev/vdb1对应的挂载点/home，空间使用91%，需要对/dev/vdb1 的分区进行扩容
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# growpart /dev/vdb 1
CHANGED: partition=1 start=2048 old: size=2097149952 end=2097152000 new: size=4194301919 end=4194303967
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]#
五、运行resize2fs命令扩容目标分区文件系统
首先查看文件系统类型
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Thu Nov 29 03:34:10 2018
#
# Accessible filesystems, by reference, are maintained under /dev/disk
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=b98386f1-e6a8-44e3-9ce1-a50e59d9a170 / ext4 defaults 1 1
/dev/vdb1 /home ext4 defaults 0 0
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]#
/dev/vdb1文件系统类型为ext4,运行如下命令
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# resize2fs /dev/vdb1
resize2fs 1.42.9 (28-Dec-2013)
Filesystem at /dev/vdb1 is mounted on /home; on-line resizing required
old_desc_blocks = 125, new_desc_blocks = 250
The filesystem on /dev/vdb1 is now 524287739 blocks long.
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]#
再次查看硬盘
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# df –h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 197G 4.9G 182G 3% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 504K 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vdb1 2.0T 846G 1.1T 46% /home
tmpfs 1.6G 0 1.6G 0% /run/user/0
[root@iZ2ze4hqhlabzt7nqcxfxzZ home]#
/dev/vdb1的容量已经扩围2.0T，至此在线扩容成功。
以上则是阿里云ecs 硬盘在线扩容详细教程的全部内容，希望对您所帮助，更多云服务器知识请访问服务器之家！
原文地址:https://www.cnblogs.com/sky-cheng/p/14626373.html
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