lsblk df -Th  查看磁盘信息  

df -Th

1 查看物理卷 pvs 或者 pvdisplay 或者 pvscan

[root@oracledb Thu Mar 13 13:53:44 /]# pvs

  PV         VG       Fmt  Attr PSize    PFree

  /dev/sda3  centos   lvm2 a--  <237.28g    0

  /dev/sdb1  centos   lvm2 a--    <1.82t    0

  /dev/sdd2  centos00 lvm2 a--  <464.76g    0

2 查看卷组 vgs 或 vgdisplay 或 vgscan

[root@oracledb Thu Mar 13 13:58:29 /]# vgs

  VG       #PV #LV #SN Attr   VSize    VFree

  centos     2   5   0 wz--n-    2.05t    0

  centos00   1   3   0 wz--n- <464.76g    0

3 查看逻辑卷 lvs 或 lvdisplay 或 lvscan

[root@oracledb Thu Mar 13 13:59:25 /]# lvs

  LV             VG       Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert

  big-data       centos   -wi-a-----   <1.71t                                                    

  home           centos   -wi-a-----  200.00g                                                    

  root           centos   -wi-a-----   50.00g                                                    

  swap           centos   -wi-a-----    4.00g                                                    

  temp_home_data centos   -wi-ao----  100.00g                                                    

  home           centos00 -wi-a----- <410.76g                                                    

  root           centos00 -wi-ao----   50.00g                                                    

  swap           centos00 -wi-a-----    4.00g   

 701  lvs

  702  vgs

  704  df -h /

  705  lvextend -L +10g /dev/mapper/centos00-root

  707  lvextend -L +40g /dev/mapper/centos00-root

  711  df -Th

  712   xfs_growfs /dev/mapper/centos00-root

resize2fs 针对文件系统 ext2 ext3 ext4
xfs_growfs 针对文件系统 xfs

. 常用命令—格式化逻辑卷

4.将逻辑卷lv1格式化（xfs格式）

mkfs.xfs /dev/vg01/lv1

5. 将逻辑卷lv1格式化（ext4格式）

mkfs.ext4 /dev/vg01/lv1

6、启动自动挂载

vim /etc/fstab

/dev/mapper/centos-temp_home_data /home ext4 defaults 0 0

/dev/mapper/centos-big_data /big_data ext4 defaults 0 0