新增一块磁盘，将此磁盘加入 /home 空间下：
[root@test1 home]# fdisk /dev/sdd Command (m for help): n Partition type: p primary (0 primary, 0 extended, 4 free) e extended Select (default p): Using default response p Partition number (1-4, default 1): First sector (2048-419430399, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-419430399, default 419430399): Using default value 419430399 Partition 1 of type Linux and of size 200 GiB is set
*.新建的分区似乎重启才会生效
[root@test1 home]# pvcreate /dev/sdd
Device /dev/sdd excluded by a filter.
[root@test1 ~]# vgextend centos /dev/sdd1 Volume group "centos" successfully extended
[root@test1 ~]# lvresize -L +200g /dev/centos/home
Size of logical volume centos/home changed from 1.04 TiB (273918 extents) to <1.05 TiB (274172 extents).
Logical volume centos/home successfully resized
此时 df -h
/dev/mapper/centos-home 870G 401G 469G 47% /home
重新识别 /dev/centos/home 的大小
[root@test1 ~]# xfs_growfs /dev/centos/home
meta-data=/dev/mapper/centos-home isize=512 agcount=4, agsize=57015808 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=228063232, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=111359, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 228063232 to 280752128