阿里云ecs 硬盘在线扩容详细教程

[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# yum install cloud-utils-growpart -yLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfileResolving Dependencies--> Running transaction check---> Package cloud-utils-growpart.noarch 0:0.29-5.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved=================================================================================================================== Package                              Arch                   Version                    Repository            Size===================================================================================================================Installing: cloud-utils-growpart                 noarch                 0.29-5.el7                 base                  27 kTransaction Summary===================================================================================================================Install  1 PackageTotal download size: 27 kInstalled size: 61 kDownloading packages:cloud-utils-growpart-0.29-5.el7.noarch.rpm                                                  |  27 kB  00:00:00     Running transaction checkRunning transaction testTransaction test succeededRunning 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 -hFilesystem      Size  Used Avail Use% Mounted on/dev/vda1       197G  4.9G  182G   3% /devtmpfs        7.8G     0  7.8G   0% /devtmpfs           7.8G     0  7.8G   0% /dev/shmtmpfs           7.8G  504K  7.8G   1% /runtmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup/dev/vdb1       985G  846G   89G  91% /hometmpfs           1.6G     0  1.6G   0% /run/user/0

[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# growpart /dev/vdb 1CHANGED: partition=1 start=2048 old: size=2097149952 end=2097152000 new: size=4194301919 end=4194303967[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# 

[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]# 

[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# resize2fs /dev/vdb1resize2fs 1.42.9 (28-Dec-2013)Filesystem at /dev/vdb1 is mounted on /home; on-line resizing requiredold_desc_blocks = 125, new_desc_blocks = 250The filesystem on /dev/vdb1 is now 524287739 blocks long.[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# 

[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# df -hFilesystem      Size  Used Avail Use% Mounted on/dev/vda1       197G  4.9G  182G   3% /devtmpfs        7.8G     0  7.8G   0% /devtmpfs           7.8G     0  7.8G   0% /dev/shmtmpfs           7.8G  504K  7.8G   1% /runtmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup/dev/vdb1       2.0T  846G  1.1T  46% /hometmpfs           1.6G     0  1.6G   0% /run/user/0[root@iZ2ze4hqhlabzt7nqcxfxzZ home]#