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 -yLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfileResolving Dependencies--> Running transaction check---> Package gdisk.x86_64 0:0.8.10-3.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved=================================================================================================================== PackageArchVersionRepository Size===================================================================================================================Installing: gdiskx86_640.8.10-3.el7 base190 kTransaction Summary===================================================================================================================Install1 PackageTotal download size: 190 kInstalled size: 660 kDownloading packages:gdisk-0.8.10-3.el7.x86_64.rpm | 190 kB00:00:00 Running transaction checkRunning transaction testTransaction test succeededRunning transactionWarning: 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.el7Complete!

三、下载阿里云growpart工具

[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=================================================================================================================== PackageArch VersionRepositorySize===================================================================================================================Installing: cloud-utils-growpart noarch 0.29-5.el7 base27 kTransaction Summary===================================================================================================================Install1 PackageTotal download size: 27 kInstalled size: 61 kDownloading packages:cloud-utils-growpart-0.29-5.el7.noarch.rpm|27 kB00:00:00 Running transaction checkRunning transaction testTransaction test succeededRunning transactionInstalling : cloud-utils-growpart-0.29-5.el7.noarch1/1 Verifying: cloud-utils-growpart-0.29-5.el7.noarch1/1 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 -hFilesystemSizeUsed Avail Use% Mounted on/dev/vda1 197G4.9G182G 3% /devtmpfs7.8G 07.8G 0% /devtmpfs 7.8G 07.8G 0% /dev/shmtmpfs 7.8G504K7.8G 1% /runtmpfs 7.8G 07.8G 0% /sys/fs/cgroup/dev/vdb1 985G846G 89G91% /hometmpfs 1.6G 01.6G 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 1CHANGED: 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 2019## 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 / ext4defaults1 1/dev/vdb1 /home ext4defaults0 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/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]#

再次查看硬盘

[root@iZ2ze4hqhlabzt7nqcxfxzZ home]# df -hFilesystemSizeUsed Avail Use% Mounted on/dev/vda1 197G4.9G182G 3% /devtmpfs7.8G 07.8G 0% /devtmpfs 7.8G 07.8G 0% /dev/shmtmpfs 7.8G504K7.8G 1% /runtmpfs 7.8G 07.8G 0% /sys/fs/cgroup/dev/vdb1 2.0T846G1.1T46% /hometmpfs 1.6G 01.6G 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:cnblogs/sky-cheng/p/14626373.html

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