centos7 lvm添加硬盘后扩展磁盘空间
df -h
pvdisplay
vgdisplay
fdisk -l #查看并找出新加磁盘
wipefs -a /dev/sdb #如已有分区表需先擦除,否则可跳过
#在新磁盘创建物理卷:
pvcreate /dev/sdb
#将新磁盘添加到目标物理卷组
vgextend rootvg /dev/sdb
#扩容lvm
lvextend -L +2000G /dev/mapper/rootvg-rootlv
#使扩容生效
for
xfs:
xfs_growfs /dev/mapper/rootvg-rootlv
Or
for
ext4:
resize2fs /dev/mapper/rootvg-rootlv
refer link: https://www.huaweicloud.com/articles/bb03bda7156ff72077e827364e3719c5.html
https://blog.csdn.net/yanchaohui1030/article/details/99838525