linux lvm扩容

1.分区,
  查看磁盘使用：fdisk -l

  对磁盘分区：fdisk /dev/sdb

2.创建pv

  pvcreate /dev/sdb1

  查看pv： pvdisplay


3.查看vg
  vgdisplay
  --- Volume group ---
  VG Name               VolGroup00


4.扩容vg
  vgextend VolGroup00 /dev/sdb1
  Volume group "VolGroup00" successfully extended


5.检查vg

  vgdisplay

6.查看lv

  lvdisplay
    --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00 

7.扩容lv

  lvextend /dev/VolGroup00/LogVol00 /dev/sdb1

8.查看lv

  lvdisplay
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00

9.扩容磁盘空间


  扩容分区：resize2fs /dev/mapper/lv_root

  xfs扩容分区：xfs_growfs /dev/mapper/lv_root

  查看： df -h


完成