ubuntu 添加新的盘 指定给现有的 vg

新盘挂载现有的vg模式

• 添加硬盘
• 查看硬盘信息
• 查询 vg

fdisk -l #查看添加磁盘信息
pvcreate /dev/vdc # 创建pv
vgextend ubuntu-vg /dev/vdc # 将盘给现有的vg

lvresize -L +10G /dev/mapper/ubuntu--vg-root # 扩容10G
## lvextend -l +100%FREE /dev/mapper/ubuntu--vg-root ## 全部扩容
resize2fs /dev/mapper/data--vg-data--lv  # 刷新

## 查看添加磁盘信息

root@h3c-test:~# fdisk -l

Disk /dev/vdc: 30 GiB, 32212254720 bytes, 62914560 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
## 创建 pv
root@h3c-test:~# pvcreate /dev/vdc
  Physical volume "/dev/vdc" successfully created
## 查询pv
root@h3c-test:~# pvs
  PV         VG        Fmt  Attr PSize   PFree 
  /dev/vda5  ubuntu-vg lvm2 a--   29.28g 40.00m
  /dev/vdb   data-vg   lvm2 a--  120.00g 10.00g
  /dev/vdc             lvm2 ---   30.00g 30.00g
## 查询pv
root@h3c-test:~# vgs
  VG        #PV #LV #SN Attr   VSize   VFree 
  data-vg     1   1   0 wz--n- 120.00g 10.00g
  ubuntu-vg   1   2   0 wz--n-  29.28g 40.00m
## 将新的盘 指定给现有的 vg
root@h3c-test:~# vgextend ubuntu-vg /dev/vdc
  Volume group "ubuntu-vg" successfully extended
## 查询当前 vg 变化
root@h3c-test:~# vgs
  VG        #PV #LV #SN Attr   VSize   VFree 
  data-vg     1   1   0 wz--n- 120.00g 10.00g
  ubuntu-vg   2   2   0 wz--n-  59.28g 30.04g
## 给lv 扩容查询

root@h3c-test:~# lsblk 
NAME                  MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
fd0                     2:0    1    4K  0 disk 
sr0                    11:0    1 1024M  0 rom  
vda                   253:0    0   30G  0 disk 
├─vda1                253:1    0  731M  0 part /boot
├─vda2                253:2    0    1K  0 part 
└─vda5                253:5    0 29.3G  0 part 
  ├─ubuntu--vg-root   252:0    0 28.3G  0 lvm  /
  └─ubuntu--vg-swap_1 252:1    0  976M  0 lvm  [SWAP]
vdb                   253:16   0  120G  0 disk 
└─data--vg-data--lv   252:2    0  110G  0 lvm  /work
vdc                   253:32   0   30G  0 disk 
## 给lv 扩容 10G
root@h3c-test:~# lvresize -L +10G /dev/mapper/ubuntu--vg-root
  Size of logical volume ubuntu-vg/root changed from 28.29 GiB (7242 extents) to 38.29 GiB (9802 extents).
  Logical volume root successfully resized.
## 刷新
root@h3c-test:~# resize2fs /dev/mapper/ubuntu--vg-root
resize2fs 1.42.13 (17-May-2015)
Filesystem at /dev/mapper/ubuntu--vg-root is mounted on /; on-line resizing required
old_desc_blocks = 2, new_desc_blocks = 3
The filesystem on /dev/mapper/ubuntu--vg-root is now 10037248 (4k) blocks long.
## 查询扩展后 lv 信息
root@h3c-test:~# lsblk 
NAME                  MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
fd0                     2:0    1    4K  0 disk 
sr0                    11:0    1 1024M  0 rom  
vda                   253:0    0   30G  0 disk 
├─vda1                253:1    0  731M  0 part /boot
├─vda2                253:2    0    1K  0 part 
└─vda5                253:5    0 29.3G  0 part 
  ├─ubuntu--vg-root   252:0    0 38.3G  0 lvm  /
  └─ubuntu--vg-swap_1 252:1    0  976M  0 lvm  [SWAP]
vdb                   253:16   0  120G  0 disk 
└─data--vg-data--lv   252:2    0  110G  0 lvm  /work
vdc                   253:32   0   30G  0 disk 
└─ubuntu--vg-root     252:0    0 38.3G  0 lvm  /