在线扩容
[root@liujunjun ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 384M 0 384M 0% /dev
tmpfs 400M 0 400M 0% /dev/shm
tmpfs 400M 5.8M 394M 2% /run
tmpfs 400M 0 400M 0% /sys/fs/cgroup
/dev/mapper/cl-root 19G 1.4G 18G 8% /
/dev/sda1 283M 126M 139M 48% /boot
tmpfs 80M 0 80M 0% /run/user/0
/dev/mapper/vgtest-vgtest_LV01 30G 247M 30G 1% /data
[root@liujunjun ~]# lvextend -L 35G /dev/vgtest/vgtest_LV01
[root@liujunjun ~]# lvdisplay
--- Logical volume ---
LV Path /dev/vgtest/vgtest_LV01
LV Name vgtest_LV01
VG Name vgtest
LV UUID 62qwnI-NGDT-Cvat-ahw1-Kzvf-qfgT-fOcDYR
LV Write Access read/write
LV Creation host, time liujunjun, 2020-12-13 06:48:47 -0500
LV Status available
# open 1
LV Size 35.00 GiB
Current LE 8960
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2
[root@liujunjun ~]# xfs_growfs /dev/vgtest/vgtest_LV01
meta-data=/dev/mapper/vgtest-vgtest_LV01 isize=512 agcount=4, agsize=1966080 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=7864320, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=3840, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 7864320 to 9175040
[root@liujunjun ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/centos-root 19G 1.8G 18G 10% /
devtmpfs 475M 0 475M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 7.7M 479M 2% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/sda1 197M 111M 87M 56% /boot
tmpfs 98M 0 98M 0% /run/user/0
/dev/mapper/vgtest-vgtest_LV01 35G 33M 35G 1% /data
[root@liujunjun ~]#
resize2fs /dev/vg01/lv02 #此为ext分区格式的重载大小
