lvm

  1. 查询逻辑卷的文件系统格式

    1. [root@test1 ~]# blkid /dev/VolGroup01/lv1 
    2. /dev/VolGroup01/lv1: UUID="300f238f-1ffc-4029-b5f1-356c62706b83" TYPE="ext4"

  2. 将新分配的磁盘扩展至卷组

    1. [root@test1 ~]# vgextend centos /dev/vda3    //将新分区加入卷组
    2. Physical volume "/dev/vda3" successfully created.
    3. Volume group "centos" successfully extended
    4. [root@test1 ~]# ]# ]vgdisplay 
    5. --- Volume group ---
    6. VG Name               vg_sys
    7. System ID             
    8. Format                lvm2
    9. Metadata Areas        2
    10. Metadata Sequence No  5
    11. VG Access             read/write
    12. VG Status             resizable
    13. MAX LV                0
    14. Cur LV                3
    15. Open LV               3
    16. Max PV                0
    17. Cur PV                2
    18. Act PV                2
    19. VG Size               399.50 GiB
    20. PE Size               4.00 MiB
    21. Total PE              102273
    22. Alloc PE / Size       51059 / 199.45 GiB
    23. Free  PE / Size       51214 / 200.05 GiB
    24. VG UUID               yhssCV-i2Ba-v3LH-XVRJ-vtZ3-Ehj6-JZKd23

  3. 逻辑卷扩展卷组剩余所有空间

    1. ~]# lvextend -l +51214 /dev/vg_sys/lv_home    //逻辑卷扩展卷组剩余所有空间 或者(lvextend -l +100%FREE /dev/centos/root)
    2. Size of logical volume vg_sys/lv_home changed from 119.37 GiB (30559 extents) to 319.43 GiB (81773 extents).
    3. Logical volume lv_home successfully resized.

  4. 刷新文件系统

    1. ~]# xfs_growfs /dev/vg_sys/lv_home
    2. ~]# df -h