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硬盘扩容后，增加到lvm中

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硬盘扩容后，增加到lvm中
1、查看原有配置信息
    [root@vm132 ~]# df -h
    Filesystem            Size  Used Avail Use% Mounted on
    /dev/mapper/vg_vm132-LogVol01
                          7.5G  670M  6.5G  10% /
    tmpfs                 495M     0  495M   0% /dev/shm
    /dev/sda1             488M   32M  431M   7% /boot
    /dev/mapper/vg_vm132-LogVol00
                          9.5G   22M  9.0G   1% /home
    [root@vm132 ~]# vgdisplay 
      --- Volume group ---
      VG Name               vg_vm132
      System ID             
      Format                lvm2
      Metadata Areas        1
      Metadata Sequence No  3
      VG Access             read/write
      VG Status             resizable
      MAX LV                0
      Cur LV                2
      Open LV               2
      Max PV                0
      Cur PV                1
      Act PV                1
      VG Size               17.50 GiB
      PE Size               4.00 MiB
      Total PE              4479
      Alloc PE / Size       4479 / 17.50 GiB
      Free  PE / Size       0 / 0   
      VG UUID               iEINsi-H04G-0nnw-nlNk-7cn3-ajqK-2oHAIU
        
    [root@vm132 ~]# pvdisplay 
      --- Physical volume ---
      PV Name               /dev/sda3
      VG Name               vg_vm132
      PV Size               17.50 GiB / not usable 3.00 MiB
      Allocatable           yes (but full)
      PE Size               4.00 MiB
      Total PE              4479
      Free PE               0
      Allocated PE          4479
      PV UUID               Bsdf9l-0Fd6-vMOL-1YOi-kvkM-8nUe-Em3KfP
     
    [root@vm132 ~]# lvdisplay 
      --- Logical volume ---
      LV Path                /dev/vg_vm132/LogVol01
      LV Name                LogVol01
      VG Name                vg_vm132
      LV UUID                ML4A49-2a3o-ZjQP-0hQf-xeJ5-34ox-cceWPN
      LV Write Access        read/write
      LV Creation host, time vm132.wanghz.com, 2020-06-15 21:36:41 +0800
      LV Status              available
      # open                 1
      LV Size                7.73 GiB
      Current LE             1979
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:0
        
      --- Logical volume ---
      LV Path                /dev/vg_vm132/LogVol00
      LV Name                LogVol00
      VG Name                vg_vm132
      LV UUID                Rc0FSV-5aA0-zMND-4Dmt-0asQ-CEeC-fR3IwM
      LV Write Access        read/write
      LV Creation host, time vm132.wanghz.com, 2020-06-15 21:36:44 +0800
      LV Status              available
      # open                 1
      LV Size                9.77 GiB
      Current LE             2500
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:1
    
2、对新增磁盘空间进行分区
    [root@vm132 ~]# fdisk /dev/sda
 
    WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
             switch off the mode (command 'c') and change display units to
             sectors (command 'u').
 
    Command (m for help): p
 
    Disk /dev/sda: 32.2 GB, 32212254720 bytes
    255 heads, 63 sectors/track, 3916 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x0003ed99
 
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *           1          66      524288   83  Linux
    Partition 1 does not end on cylinder boundary.
    /dev/sda2              66         327     2097152   82  Linux swap / Solaris
    Partition 2 does not end on cylinder boundary.
    /dev/sda3             327        2611    18349056   8e  Linux LVM
 
    Command (m for help): n
    Command action
       e   extended
       p   primary partition (1-4)
    p
    Selected partition 4
    First cylinder (2611-3916, default 2611): 
    Using default value 2611
    Last cylinder, +cylinders or +size{K,M,G} (2611-3916, default 3916): 
    Using default value 3916
 
    Command (m for help): t
    Partition number (1-4): 4
    Hex code (type L to list codes): 8e
    Changed system type of partition 4 to 8e (Linux LVM)
 
    Command (m for help): p
 
    Disk /dev/sda: 32.2 GB, 32212254720 bytes
    255 heads, 63 sectors/track, 3916 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x0003ed99
 
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *           1          66      524288   83  Linux
    Partition 1 does not end on cylinder boundary.
    /dev/sda2              66         327     2097152   82  Linux swap / Solaris
    Partition 2 does not end on cylinder boundary.
    /dev/sda3             327        2611    18349056   8e  Linux LVM
    /dev/sda4            2611        3916    10483750   8e  Linux LVM
 
    Command (m for help): w
    The partition table has been altered!
 
    Calling ioctl() to re-read partition table.
 
    WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
    The kernel still uses the old table. The new table will be used at
    the next reboot or after you run partprobe(8) or kpartx(8)
    Syncing disks.
    [root@vm132 ~]# init 6     -----重启
3、创建pv卷
    [root@vm132 ~]# pvcreate /dev/sda4
      Physical volume "/dev/sda4" successfully created
4、扩容到vg中
    [root@vm132 ~]# vgdisplay 
      --- Volume group ---
      VG Name               vg_vm132
      System ID             
      Format                lvm2
      Metadata Areas        1
      Metadata Sequence No  3
      VG Access             read/write
      VG Status             resizable
      MAX LV                0
      Cur LV                2
      Open LV               2
      Max PV                0
      Cur PV                1
      Act PV                1
      VG Size               17.50 GiB
      PE Size               4.00 MiB
      Total PE              4479
      Alloc PE / Size       4479 / 17.50 GiB
      Free  PE / Size       0 / 0   
      VG UUID               iEINsi-H04G-0nnw-nlNk-7cn3-ajqK-2oHAIU
    [root@vm132 ~]# vgextend vg_vm132 /dev/sda4
      Volume group "vg_vm132" successfully extended
    [root@vm132 ~]# vgdisplay 
      --- Volume group ---
      VG Name               vg_vm132
      System ID             
      Format                lvm2
      Metadata Areas        2
      Metadata Sequence No  4
      VG Access             read/write
      VG Status             resizable
      MAX LV                0
      Cur LV                2
      Open LV               2
      Max PV                0
      Cur PV                2
      Act PV                2
      VG Size               27.49 GiB
      PE Size               4.00 MiB
      Total PE              7038
      Alloc PE / Size       4479 / 17.50 GiB
      Free  PE / Size       2559 / 10.00 GiB
      VG UUID               iEINsi-H04G-0nnw-nlNk-7cn3-ajqK-2oHAIU
5、扩容到lv中
    [root@vm132 ~]# lvdisplay 
      --- Logical volume ---
      LV Path                /dev/vg_vm132/LogVol01
      LV Name                LogVol01
      VG Name                vg_vm132
      LV UUID                ML4A49-2a3o-ZjQP-0hQf-xeJ5-34ox-cceWPN
      LV Write Access        read/write
      LV Creation host, time vm132.wanghz.com, 2020-06-15 21:36:41 +0800
      LV Status              available
      # open                 1
      LV Size                7.73 GiB
      Current LE             1979
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:0
        
      --- Logical volume ---
      LV Path                /dev/vg_vm132/LogVol00
      LV Name                LogVol00
      VG Name                vg_vm132
      LV UUID                Rc0FSV-5aA0-zMND-4Dmt-0asQ-CEeC-fR3IwM
      LV Write Access        read/write
      LV Creation host, time vm132.wanghz.com, 2020-06-15 21:36:44 +0800
      LV Status              available
      # open                 1
      LV Size                9.77 GiB
      Current LE             2500
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:1
 
    [root@vm132 ~]# lvdisplay 
      --- Logical volume ---
      LV Path                /dev/vg_vm132/LogVol01
      LV Name                LogVol01
      VG Name                vg_vm132
      LV UUID                ML4A49-2a3o-ZjQP-0hQf-xeJ5-34ox-cceWPN
      LV Write Access        read/write
      LV Creation host, time vm132.wanghz.com, 2020-06-15 21:36:41 +0800
      LV Status              available
      # open                 1
      LV Size                7.73 GiB
      Current LE             1979
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:0
        
      --- Logical volume ---
      LV Path                /dev/vg_vm132/LogVol00
      LV Name                LogVol00
      VG Name                vg_vm132
      LV UUID                Rc0FSV-5aA0-zMND-4Dmt-0asQ-CEeC-fR3IwM
      LV Write Access        read/write
      LV Creation host, time vm132.wanghz.com, 2020-06-15 21:36:44 +0800
      LV Status              available
      # open                 1
      LV Size                9.77 GiB
      Current LE             2500
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:1
        
    [root@vm132 ~]# lvextend -L +9.9G /dev/vg_vm132/LogVol00
      Rounding size to boundary between physical extents: 9.90 GiB.
      Size of logical volume vg_vm132/LogVol00 changed from 9.77 GiB (2500 extents) to 19.67 GiB (5035 extents).
      Logical volume LogVol00 successfully resized.
    [root@vm132 ~]# resize2fs /dev/vg_vm132/LogVol00
    resize2fs 1.41.12 (17-May-2010)
    Filesystem at /dev/vg_vm132/LogVol00 is mounted on /home; on-line resizing required
    old desc_blocks = 1, new_desc_blocks = 2
    Performing an on-line resize of /dev/vg_vm132/LogVol00 to 5155840 (4k) blocks.
    The filesystem on /dev/vg_vm132/LogVol00 is now 5155840 blocks long.
 
    [root@vm132 ~]# df -h
    Filesystem            Size  Used Avail Use% Mounted on
    /dev/mapper/vg_vm132-LogVol01
                          7.5G  670M  6.5G  10% /
    tmpfs                 495M     0  495M   0% /dev/shm
    /dev/sda1             488M   32M  431M   7% /boot
    /dev/mapper/vg_vm132-LogVol00
                           20G   27M   19G   1% /home