Proxmox VE（PVE）虚拟机重新分配可用磁盘大小

本文主要针对pve数据区扩容，以简单的方式说明步骤。

1、查看当前逻辑卷

root@home:~# lsblk
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda                            8:0    0 223.6G  0 disk
├─sda1                         8:1    0  1007K  0 part
├─sda2                         8:2    0     1G  0 part /boot/efi
├─sda3                         8:3    0   117G  0 part
│ ├─pve-swap                 252:0    0     8G  0 lvm  [SWAP]
│ ├─pve-root                 252:1    0  39.2G  0 lvm  /
│ ├─pve-data_tmeta           252:2    0     1G  0 lvm
│ │ └─pve-data-tpool         252:4    0  53.2G  0 lvm
│ │   ├─pve-data             252:5    0  53.2G  1 lvm
│ │   ├─pve-vm--100--disk--1 252:6    0   1.7G  0 lvm
│ │   ├─pve-vm--101--disk--0 252:7    0     6G  0 lvm
│ │   └─pve-vm--103--disk--0 252:8    0    52G  0 lvm
│ └─pve-data_tdata           252:3    0  53.2G  0 lvm
│   └─pve-data-tpool         252:4    0  53.2G  0 lvm
│     ├─pve-data             252:5    0  53.2G  1 lvm
│     ├─pve-vm--100--disk--1 252:6    0   1.7G  0 lvm
│     ├─pve-vm--101--disk--0 252:7    0     6G  0 lvm
│     └─pve-vm--103--disk--0 252:8    0    52G  0 lvm

2、新建分区

root@home:~# fdisk /dev/sda

Command (m for help): p

Disk /dev/sda: 223.57 GiB, 240057409536 bytes, 468862128 sectors
Disk model: INTEL SSDMCEAC24
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 3E8147C5-43F7-41EB-9327-4B436DAF1D56

Device       Start       End   Sectors  Size Type
/dev/sda1       34      2047      2014 1007K BIOS boot
/dev/sda2     2048   2099199   2097152    1G EFI System
/dev/sda3  2099200 247463936 245364737  117G Linux LVM

Command (m for help): n
Partition number (4-128, default 4):
First sector (247463937-468862094, default 247465984):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (247465984-468862094, default 468860927):

Created a new partition 4 of type 'Linux filesystem' and of size 105.6 GiB.

Command (m for help): t
Partition number (1-4, default 4): 4
Partition type or alias (type L to list all): 8e

Type of partition 4 is unchanged: Linux filesystem.

Command (m for help): w
The partition table has been altered.
Syncing disks.

3、创建新的物理卷 (PV)

root@home:~# pvcreate /dev/sda4
  Physical volume "/dev/sda4" successfully created.

4、查看卷组（VG）

root@home:~# vgdisplay
  --- Volume group ---
  VG Name               pve
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  153
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                10
  Open LV               4
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               <117.00 GiB
  PE Size               4.00 MiB
  Total PE              29951
  Alloc PE / Size       26238 / 102.49 GiB
  Free  PE / Size       3713 / 14.50 GiB
  VG UUID               j3PLob-kv6B-8v8I-jvIz-FenB-9vnf-wayv5b

5、扩展卷组

root@home:~# vgextend pve /dev/sda4
  Volume group "pve" successfully extended

6、确认逻辑卷设备名（pve-data）

root@home:~# ls /dev/mapper/
control               pve-data_tdata        pve-data-tpool        pve-swap              pve-vm--101--disk--0
pve-data              pve-data_tmeta        pve-root              pve-vm--100--disk--1  pve-vm--103--disk--0

7、分配所有剩余空间到逻辑卷

root@home:~# lvextend -l +100%FREE /dev/mapper/pve-data
  Size of logical volume pve/data_tdata changed from <53.25 GiB (13631 extents) to <173.32 GiB (44369 extents).
  Logical volume pve/data successfully resized.

8、查看最终结果

root@home:~# lsblk
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda                            8:0    0 223.6G  0 disk
├─sda1                         8:1    0  1007K  0 part
├─sda2                         8:2    0     1G  0 part /boot/efi
├─sda3                         8:3    0   117G  0 part
│ ├─pve-swap                 252:0    0     8G  0 lvm  [SWAP]
│ ├─pve-root                 252:1    0  39.2G  0 lvm  /
│ ├─pve-data_tmeta           252:2    0     1G  0 lvm
│ │ └─pve-data-tpool         252:4    0 173.3G  0 lvm
│ │   ├─pve-data             252:5    0 173.3G  1 lvm
│ │   ├─pve-vm--100--disk--1 252:6    0   1.7G  0 lvm
│ │   ├─pve-vm--101--disk--0 252:7    0     6G  0 lvm
│ │   └─pve-vm--103--disk--0 252:8    0    52G  0 lvm
│ └─pve-data_tdata           252:3    0 173.3G  0 lvm
│   └─pve-data-tpool         252:4    0 173.3G  0 lvm
│     ├─pve-data             252:5    0 173.3G  1 lvm
│     ├─pve-vm--100--disk--1 252:6    0   1.7G  0 lvm
│     ├─pve-vm--101--disk--0 252:7    0     6G  0 lvm
│     └─pve-vm--103--disk--0 252:8    0    52G  0 lvm
└─sda4                         8:4    0 105.6G  0 part
  └─pve-data_tdata           252:3    0 173.3G  0 lvm
    └─pve-data-tpool         252:4    0 173.3G  0 lvm
      ├─pve-data             252:5    0 173.3G  1 lvm
      ├─pve-vm--100--disk--1 252:6    0   1.7G  0 lvm
      ├─pve-vm--101--disk--0 252:7    0     6G  0 lvm
      └─pve-vm--103--disk--0 252:8    0    52G  0 lvm

root@home:~# pvdisplay
  --- Physical volume ---
  PV Name               /dev/sda3
  VG Name               pve
  PV Size               <117.00 GiB / not usable 3.00 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              29951
  Free PE               3713
  Allocated PE          26238
  PV UUID               XcfF1q-1U9Z-w6ub-Bx6B-DG7f-33YW-R1WHtd

  --- Physical volume ---
  PV Name               /dev/sda4
  VG Name               pve
  PV Size               <105.57 GiB / not usable 3.00 MiB
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              27025
  Free PE               27025
  Allocated PE          0
  PV UUID               LqdHoP-NdQk-1zj6-nC1v-uTpu-OWq3-JxVjjn

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