腾讯云服务器磁盘扩容

参考

• 腾讯云服务器磁盘扩容

操作步骤

调整磁盘空间

磁盘快照

重要

磁盘快照，这一步很重要。

确定扩展方式

根据提示，我们的方式为 MBR 分区

扩容磁盘

1.查看分区信息

lsblk

结果

NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda    253:0    0  300G  0 disk 
└─vda1 253:1    0  100G  0 part /

2.查看磁盘信息

df -hT

结果

Filesystem     Type      Size  Used Avail Use% Mounted on
devtmpfs       devtmpfs   16G     0   16G   0% /dev
tmpfs          tmpfs      16G   24K   16G   1% /dev/shm
tmpfs          tmpfs      16G   11M   16G   1% /run
tmpfs          tmpfs      16G     0   16G   0% /sys/fs/cgroup
/dev/vda1      ext4       99G   28G   68G  29% /
tmpfs          tmpfs     3.1G     0  3.1G   0% /run/user/0
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/21e7e3644602ccf49b04feabfb81ccee6fa31b56f352a782f74e0edbc1921610/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/846749ea602abedfe117d5e123d83c625330dfb06662f0fff05f811463da2bf4/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/5d4e277262ac0f00dea142ff716fca2ad3c520a45fc3d84587d4084f50f77917/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/bc9a34f23eb06652edde410754faeaf3766e40b66030394566a7c892a78d8623/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/3f809301fc99b13cc2291f299b74a0925db8615e8af6aa34b8c106efd570e9e7/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/989889099f07d16f8c7c0086c6dba61a8614add26664e5e521aa15f512c60c07/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/f39bb00856b119f6b81fd42ceb9b4d154b356528e0c05a6a29522be2b6f7dacf/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/79d6784b628ac00a54a55cc970365982e3b7c5d2f17c1efb66bd4c7d31df0f0c/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/45c6c674edc5923593d8c43c1bd6b9f51ab5b3c7e99e83c51e596019dd1d5165/merged
overlay        overlay    99G   28G   68G  29% /var/lib/docker/overlay2/f5a1b8693c1b4c9fe80e06745956e0c49c9337cb1e46db3cfb8432084b1852fd/merged

3.使用 growpart 扩展分区

growpart /dev/vda 1

结果

CHANGED: partition=1 start=2048 old: size=209713119 end=209715167 new: size=629143519 end=629145567

4.重启服务器（必须步骤）

reboot

5.使用 resize2fs 扩展文件系统

resize2fs /dev/vda1

结果

resize2fs 1.42.9 (28-Dec-2013)
The filesystem is already 78642939 blocks long.  Nothing to do!

6.搞定-查看磁盘信息

Filesystem     Type      Size  Used Avail Use% Mounted on
devtmpfs       devtmpfs   16G     0   16G   0% /dev
tmpfs          tmpfs      16G   24K   16G   1% /dev/shm
tmpfs          tmpfs      16G   11M   16G   1% /run
tmpfs          tmpfs      16G     0   16G   0% /sys/fs/cgroup
/dev/vda1      ext4      296G   28G  256G  10% /
tmpfs          tmpfs     3.1G     0  3.1G   0% /run/user/0
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/21e7e3644602ccf49b04feabfb81ccee6fa31b56f352a782f74e0edbc1921610/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/5d4e277262ac0f00dea142ff716fca2ad3c520a45fc3d84587d4084f50f77917/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/846749ea602abedfe117d5e123d83c625330dfb06662f0fff05f811463da2bf4/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/f5a1b8693c1b4c9fe80e06745956e0c49c9337cb1e46db3cfb8432084b1852fd/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/45c6c674edc5923593d8c43c1bd6b9f51ab5b3c7e99e83c51e596019dd1d5165/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/79d6784b628ac00a54a55cc970365982e3b7c5d2f17c1efb66bd4c7d31df0f0c/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/989889099f07d16f8c7c0086c6dba61a8614add26664e5e521aa15f512c60c07/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/3f809301fc99b13cc2291f299b74a0925db8615e8af6aa34b8c106efd570e9e7/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/f39bb00856b119f6b81fd42ceb9b4d154b356528e0c05a6a29522be2b6f7dacf/merged
overlay        overlay   296G   28G  256G  10% /var/lib/docker/overlay2/bc9a34f23eb06652edde410754faeaf3766e40b66030394566a7c892a78d8623/merged