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Anolis OS8 磁盘扩容

Anolis OS8 磁盘扩容

作者: 前浪浪奔浪流 | 来源:发表于2024-04-22 17:02 被阅读0次

1、目前状态

image.png

根目录只有20G存储，显然不够。
查看/dev/vda情况

# fdisk -l
Disk /dev/vda: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00343e90

Device     Boot Start      End  Sectors Size Id Type
/dev/vda1  *     2048 41943039 41940992  20G 83 Linux


Disk /dev/vdb: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xbfdd54bc

Device     Boot Start       End   Sectors  Size Id Type
/dev/vdb1        2048 209715199 209713152  100G 83 Linux

/dev/vda有100GB但是只挂载了20GB，下边把剩下的存储加入到/ 目录下；

# fdisk /dev/vda

Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): n
Partition type
   p   primary (1 primary, 0 extended, 3 free)
   e   extended (container for logical partitions)
Select (default p): 

Using default response p.
Partition number (2-4, default 2): 
First sector (41943040-209715199, default 41943040): 
Last sector, +sectors or +size{K,M,G,T,P} (41943040-209715199, default 209715199): 

Created a new partition 2 of type 'Linux' and of size 80 GiB.

Command (m for help): w
The partition table has been altered.
Syncing disks.

# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda    253:0    0  100G  0 disk 
├─vda1 253:1    0   20G  0 part /
└─vda2 253:2    0   80G  0 part 
vdb    253:16   0  100G  0 disk 
└─vdb1 253:17   0  100G  0 part /home/mysqlback

2、对新增的磁盘处理

输入partprobe 让系统识别新增的分区；创建物理卷，使用pvcreate /dev/vda2

# partprobe
# pvcreate  /dev/vda2
-bash: pvcreate: command not found
# yum -y install lvm2
# pvcreate  /dev/vda2
  Physical volume "/dev/vda2" successfully created.

/dev/vda2 来着上边lsblk的结果 新建的分区

3、下边分两种情况，一种是vgdisplay 命令有返回值，一种是没有返回值；

3.1是有返回值的扩容方式；3.2是没有返回值的扩容方式（适用于阿里云虚机和阿里云合作的政务云）

3.1、使用vgextend命令进行动态扩展
image.png
image.png 
# 这里的ao是通过vgdisplay或者pvdisplay查到的那个vgname
vgextend ao /dev/sdb1

查看扩展的磁盘

# vgdisplay
  --- Volume group ---
  VG Name               ao
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  6
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               3
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               94.99 GiB
  PE Size               4.00 MiB
  Total PE              24318
  Alloc PE / Size       24318 / 94.99 GiB
  Free  PE / Size       0 / 0   
  VG UUID               7J29QB-r8gV-YKYc-E7VF-sAyG-EVD1-jg10aY

将空闲的磁盘扩展到/分区

# df -h
文件系统             容量  已用  可用 已用% 挂载点
devtmpfs             1.8G     0  1.8G    0% /dev
tmpfs                1.9G     0  1.9G    0% /dev/shm
tmpfs                1.9G  8.7M  1.9G    1% /run
tmpfs                1.9G     0  1.9G    0% /sys/fs/cgroup
/dev/mapper/ao-root   66G   29G   38G   43% /
/dev/mapper/ao-home   26G  212M   25G    1% /home
/dev/sda1            976M  142M  767M   16% /boot
tmpfs                372M     0  372M    0% /run/user/0

#/dev/mapper/ao-root是使用df -h查出来的/分区的文件系统名称
lvextend -l +100%FREE /dev/mapper/ao-root

重新识别/分区

# blkid
/dev/sda1: UUID="60fb36d0-ce63-469b-bef6-37dd5ac14fd2" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="4578c790-01"
/dev/sda2: UUID="mTmD1j-B6Um-HSDo-Y0w6-MRmp-WjK5-G6nqY6" TYPE="LVM2_member" PARTUUID="4578c790-02"
/dev/sdb1: UUID="i7fOR8-uOdL-z0fo-N7vq-UzfR-yYZf-N0V4An" TYPE="LVM2_member" PARTUUID="fcfdb231-01"
/dev/sr0: BLOCK_SIZE="2048" UUID="2021-07-01-22-08-59-00" LABEL="anolis-BaseOS-dvd-x86_64-8" TYPE="iso9660" PTUUID="3252e058" PTTYPE="dos"
/dev/mapper/ao-root: UUID="18ccc3e3-2e56-4290-8940-aac27116249a" BLOCK_SIZE="512" TYPE="xfs"
/dev/mapper/ao-swap: UUID="e0a6aa5c-e5de-4234-b736-88a2bdefda04" TYPE="swap"
/dev/mapper/ao-home: UUID="c8e2e00d-853c-46e8-8534-5ff29766e439" BLOCK_SIZE="512" TYPE="xfs"

# xfs_growfs /dev/mapper/ao-root
meta-data=/dev/mapper/ao-root    isize=512    agcount=6, agsize=3276800 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1
data     =                       bsize=4096   blocks=17300480, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=6400, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

查看扩容情况

# df -h
文件系统             容量  已用  可用 已用% 挂载点
devtmpfs             1.8G     0  1.8G    0% /dev
tmpfs                1.9G     0  1.9G    0% /dev/shm
tmpfs                1.9G  8.7M  1.9G    1% /run
tmpfs                1.9G     0  1.9G    0% /sys/fs/cgroup
/dev/mapper/ao-root   66G   29G   38G   43% /
/dev/mapper/ao-home   26G  212M   25G    1% /home
/dev/sda1            976M  142M  767M   16% /boot
tmpfs                372M     0  372M    0% /run/user/0

3.2、是没有返回值的扩容方式（适用于阿里云虚机和阿里云合作的政务云）

参考文章：https://help.aliyun.com/zh/ecs/user-guide/extend-the-partitions-and-file-systems-of-disks-on-a-linux-instance?spm=a2c4g.11186623.0.i1

# fdisk -l
Disk /dev/vda: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00343e90

Device     Boot Start      End  Sectors Size Id Type
/dev/vda1  *     2048 41943039 41940992  20G 83 Linux


Disk /dev/vdb: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

100GB只挂载了20GB

# fdisk -lu /dev/vda
Disk /dev/vda: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00343e90

Device     Boot Start      End  Sectors Size Id Type
/dev/vda1  *     2048 41943039 41940992  20G 83 Linux

# type growpart
growpart is /bin/growpart
# yum install -y cloud-utils-growpart
Last metadata expiration check: 0:03:51 ago on Tue 23 Apr 2024 04:53:20 PM CST.
Package cloud-utils-growpart-0.29-3.el8.noarch is already installed.
Dependencies resolved.
==========================================================================================================================================================================
 Package                                         Architecture                      Version                                     Repository                            Size
==========================================================================================================================================================================
Upgrading:
 cloud-utils-growpart                            noarch                            0.33-0.0.1.an8                              AppStream                             20 k

Transaction Summary
==========================================================================================================================================================================
Upgrade  1 Package

Total download size: 20 k
Downloading Packages:
cloud-utils-growpart-0.33-0.0.1.an8.noarch.rpm                                                                                            102 kB/s |  20 kB     00:00    
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                     101 kB/s |  20 kB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                  1/1 
  Upgrading        : cloud-utils-growpart-0.33-0.0.1.an8.noarch                                                                                                       1/2 
  Cleanup          : cloud-utils-growpart-0.29-3.el8.noarch                                                                                                           2/2 
  Running scriptlet: cloud-utils-growpart-0.29-3.el8.noarch                                                                                                           2/2 
  Verifying        : cloud-utils-growpart-0.33-0.0.1.an8.noarch                                                                                                       1/2 
  Verifying        : cloud-utils-growpart-0.29-3.el8.noarch                                                                                                           2/2 

Upgraded:
  cloud-utils-growpart-0.33-0.0.1.an8.noarch                                                                                                                              

Complete!
# LC_ALL=en_US.UTF-8
# growpart /dev/vda 1
CHANGED: partition=1 start=2048 old: size=41940992 end=41943039 new: size=209713119 end=209715166
##注意/dev/vda和1之间有空格！！！！

# df -Th
Filesystem                                                      Type      Size  Used Avail Use% Mounted on
devtmpfs                                                        devtmpfs  3.8G     0  3.8G   0% /dev
tmpfs                                                           tmpfs     3.8G     0  3.8G   0% /dev/shm
tmpfs                                                           tmpfs     3.8G  460K  3.8G   1% /run
tmpfs                                                           tmpfs     3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/vda1                                                       ext4       20G  4.0G   15G  22% /
tmpfs                                                           tmpfs     776M     0  776M   0% /run/user/0
# resize2fs /dev/vda1
resize2fs 1.46.0 (29-Jan-2020)
Filesystem at /dev/vda1 is mounted on /; on-line resizing required
old_desc_blocks = 2, new_desc_blocks = 7
The filesystem on /dev/vda1 is now 26214139 (4k) blocks long.

# df -Th
Filesystem                                                      Type      Size  Used Avail Use% Mounted on
devtmpfs                                                        devtmpfs  3.8G     0  3.8G   0% /dev
tmpfs                                                           tmpfs     3.8G     0  3.8G   0% /dev/shm
tmpfs                                                           tmpfs     3.8G  460K  3.8G   1% /run
tmpfs                                                           tmpfs     3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/vda1                                                       ext4       99G  4.0G   91G   5% /
tmpfs                                                           tmpfs     776M     0  776M   0% /run/user/0

扩展阅读：https://blog.51cto.com/u_15147537/7277209
https://blog.csdn.net/jincm13/article/details/18077501

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