一、实际状况、需求及扩容结果
/dev/mapper/centos_hikvisionos-opt 59G 53G 5.8G 91% /opt
凌晨扩容30GB，重启后
/dev/mapper/centos_hikvisionos-opt 89G 52G 37G 59% /opt
二、操作记录
[Bash shell] 纯文本查看 复制代码 vdb 253:16 0 50G 0 disk
└─vdb1 253:17 0 50G 0 part
└─centos_hikvisionos-opt 254:1 0 58.4G 0 lvm /opt
通过控制台扩容数据盘，支付费用后，如下：
[Bash shell] 纯文本查看 复制代码 vdb 253:16 0 80G 0 disk
└─vdb1 253:17 0 50G 0 part
└─centos_hikvisionos-opt 254:1 0 58.4G 0 lvm /opt
【有效命令1】# growpart /dev/vdb 1
CHANGED: partition=1 start=2048 old: size=104855552 end=104857600 new: size=167770079 end=167772127
[root@VM_0_99_centos ~]# lsblk
[Bash shell] 纯文本查看 复制代码 vdb 253:16 0 80G 0 disk
└─vdb1 253:17 0 80G 0 part
└─centos_hikvisionos-opt 254:1 0 58.4G 0 lvm /opt
【有效命令2】# pvresize /dev/vdb1
Physical volume "/dev/vdb1" changed
1 physical volume(s) resized or updated / 0 physical volume(s) not resized
【有效命令3】# lvextend -l +100%FREE /dev/mapper/centos_hikvisionos-opt
Size of logical volume centos_hikvisionos/opt changed from <58.43 GiB (14958 extents) to <88.43 GiB (22638 extents).
Logical volume centos_hikvisionos/opt successfully resized.
【有效命令4】# xfs_growfs /dev/mapper/centos_hikvisionos-opt
meta-data=/dev/mapper/centos_hikvisionos-opt isize=512 agcount=28, agsize=552704 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=15316992, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 15316992 to 23181312
最终效果：
[Bash shell] 纯文本查看 复制代码 vdb 253:16 0 80G 0 disk
└─vdb1 253:17 0 80G 0 part
└─centos_hikvisionos-opt 254:1 0 88.4G 0 lvm /opt
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