lvm调整卷大小

 

lvreduce -L 10240M /dev/rhel/home
pvchange -xn /dev/sdb1
pvmove -i 1 /dev/sdb1
vgreduce rhel /dev/sdb1

 

umount /opt/huawei/Bigdata/
lvreduce -L -100G /dev/rhel/opt_huawei_Bigdata 
mkfs.xfs /dev/rhel/opt_huawei_Bigdata -f
mount /dev/rhel/opt_huawei_Bigdata

 

lvextend -L +100G /dev/rhel/var_log 
xfs_growfs /dev/rhel/var_log

mkfs.xfs /dev/sdc -f
pvcreate /dev/sdc
vgextend centos /dev/sdc
lvextend -L +500G /dev/mapper/centos-root
xfs_growfs /dev/mapper/centos-root