今天看到yum本地缓存源空间满了
[root@mirrors data]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 92G 6.9G 85G 8% /
devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs tmpfs 1.9G 157M 1.7G 9% /run
tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/vg_bricks-data xfs 498G 498G 6.6M 100% /data
/dev/sda1 xfs 497M 321M 176M 65% /boot
/dev/dm-8 xfs 10G 59M 10G 1% /var/lib/docker/devicemapper/mnt/bc4585e2e2be37994554223e3a8875910b20532293d1cd1c86af996357fdcb5e
shm tmpfs 64M 0 64M 0% /var/lib/docker/containers/3427482cb5a39eae63b81eb568320a83845920253de19d1dea1a4a81ffc57e09/mounts/shm
tmpfs tmpfs 378M 0 378M 0% /run/user/0
上虚拟机管理平台给分配多一个磁盘。fdisk -l 看到多了一个200G的sdc
[root@mirrors ~]# fdisk -l
Disk /dev/sdb: 536.9 GB, 536870912000 bytes, 1048576000 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
Disk /dev/sdc: 214.7 GB, 214748364800 bytes, 419430400 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
Disk /dev/sda: 107.4 GB, 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
Disk label type: dos
Disk identifier: 0x00001bb7
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1026047 512000 83 Linux
/dev/sda2 1026048 209715199 104344576 8e Linux LVM
扩展vg
[root@mirrors ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <99.51g 4.00m
/dev/sdb vg_bricks lvm2 a-- <500.00g 764.00m
[root@mirrors ~]# vgextend vg_bricks /dev/sdc
Physical volume "/dev/sdc" successfully created. #自动创建pv
Volume group "vg_bricks" successfully extended
[root@mirrors ~]# vgs
VG #PV #LV #SN Attr VSize VFree
centos 1 2 0 wz--n- <99.51g 4.00m
vg_bricks 2 2 0 wz--n- 699.99g 200.74g
查看lv
[root@mirrors ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
root centos -wi-ao---- <91.63g
swap centos -wi-ao---- <7.88g
data vg_bricks Vwi-aotz-- 498.00g thinpool 100.00
thinpool vg_bricks twi-aotz-- 499.00g 99.80 50.33
先扩lv thinpool
[root@mirrors ~]# lvextend -L 699G /dev/vg_bricks/thinpool
Size of logical volume vg_bricks/thinpool_tdata changed from 499.00 GiB (127744 extents) to 699.00 GiB (178944 extents).
Logical volume vg_bricks/thinpool_tdata successfully resized.
再扩展lv data
[root@mirrors ~]# lvextend -L 698G /dev/vg_bricks/data
Size of logical volume vg_bricks/data changed from 498.00 GiB (127488 extents) to 698.00 GiB (178688 extents).
Logical volume vg_bricks/data successfully resized.
这时看到df -Th会看到容量没有刷新
[root@mirrors ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 92G 6.9G 85G 8% /
devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs tmpfs 1.9G 13M 1.9G 1% /run
tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 xfs 497M 321M 176M 65% /boot
/dev/mapper/vg_bricks-data xfs 498G 498G 6.6M 100% /data
/dev/dm-8 xfs 10G 59M 10G 1% /var/lib/docker/devicemapper/mnt/bc4585e2e2be37994554223e3a8875910b20532293d1cd1c86af996357fdcb5e
shm tmpfs 64M 0 64M 0% /var/lib/docker/containers/3427482cb5a39eae63b81eb568320a83845920253de19d1dea1a4a81ffc57e09/mounts/shm
tmpfs tmpfs 378M 0 378M 0% /run/user/0
xfs_growfs刷新下容量
[root@mirrors ~]# xfs_growfs /dev/mapper/vg_bricks-data
meta-data=/dev/mapper/vg_bricks-data isize=512 agcount=16, agsize=8159232 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=130547712, imaxpct=25
= sunit=64 swidth=64 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=63744, version=2
= sectsz=512 sunit=64 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 130547712 to 182976512
[root@mirrors ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 92G 6.9G 85G 8% /
devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs tmpfs 1.9G 13M 1.9G 1% /run
tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 xfs 497M 321M 176M 65% /boot
/dev/mapper/vg_bricks-data xfs 698G 498G 201G 72% /data
/dev/dm-8 xfs 10G 59M 10G 1% /var/lib/docker/devicemapper/mnt/bc4585e2e2be37994554223e3a8875910b20532293d1cd1c86af996357fdcb5e
shm tmpfs 64M 0 64M 0% /var/lib/docker/containers/3427482cb5a39eae63b81eb568320a83845920253de19d1dea1a4a81ffc57e09/mounts/shm
tmpfs tmpfs 378M 0 378M 0% /run/user/0
来源：CSDN
作者：运维自动化&云计算
链接：https://blog.csdn.net/h106140873/article/details/103469601