Proxmox VE(PVE)进行硬盘扩容操作教程

PVE11个月前更新 ydddj
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因为我主要是用Windows,因此下面教程是用VMware安装的PVE进行演示

准备

1.正常安装PVE,克隆硬盘到emmc上
2.启动emmc里的PVE,确认正常
3.PVE使用的local 与 local-lvm 逻辑卷
local主要是 VZDump备份文件, ISO镜像, 容器模板
local-lvm主要是 磁盘映像, 容器
因此我在这里选择扩充local-lvm,这里只有14G
local-lvm扩容之前
4.使用xshell一类的软件通过ssh进入系统,ip是pve的ip,端口是22,用户名是root,密码是pve的密码

修复

有时候有提示警告才需要修复,没警告就不用
使用

fdisk -l

可能会有红色提示:

GPT PMBR size mismatch (67108863 != 121634815) will be corrected by write.

中文含义:GPT PMBR大小不匹配(67108863 != 121634815)将通过写纠正。

先修复这个提示:
执行

apt-get update
apt-get install parted
parted -l

emmm,按理说会在弹出Fix/Ignore?的提示
输入Fix后回车即可。
但是我这里没提示啊,大概是fdisk的bug吧,那就不管他了。
如果它提示需fix的话,输入fix然后回车就能自动修复了

扩容分区

请自己根据命令查到的路径进行相应操作,每个人的卷路径可能不一样
PVE使用的是LVM管理local 与 local-lvm 逻辑卷,因此需要先扩容最底层的分区
先安装需要的软件

apt-get update
apt-get install parted

1.执行

fdisk -l

提示

GPT PMBR size mismatch (67108863 != 121634815) will be corrected by write.
Disk /dev/sda: 58 GiB, 62277025792 bytes, 121634816 sectors
Disk model: VMware Virtual S
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: 0C17A6FD-69E2-401F-97C8-209F38118AC9
 
Device Start End Sectors Size Type
/dev/sda1 34 2047 2014 1007K BIOS boot
/dev/sda2 2048 1050623 1048576 512M EFI System
/dev/sda3 1050624 67108830 66058207 31.5G Linux LVM
 
 
Disk /dev/mapper/pve-swap: 3.9 GiB, 4160749568 bytes, 8126464 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
 
 
Disk /dev/mapper/pve-root: 7.8 GiB, 8321499136 bytes, 16252928 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

可以看到硬盘有58G但分区没有那么大
2.执行

parted /dev/sda

提示

GNU Parted 3.2
Using /dev/sda
Welcome to GNU Parted! Type ‘help’ to view a list of commands.
(parted)

3.输入

print

提示

(parted) print
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sda: 62.3GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
 
Number Start End Size File system Name Flags
1 17.4kB 1049kB 1031kB bios_grub
2 1049kB 538MB 537MB fat32 boot, esp
3 538MB 34.4GB 33.8GB lvm
 
(parted)

LVM分区只有33.8GB
4.因为我们是为了扩容LVM,因此输入

resizepart 3 100%
quit

给 /dev/sda3分区增加空间,注意里边的命令 resizepart 3 100% ,是把剩余的空间全部给到/dev/sda3

注意分区编号
提示

(parted) resizepart 3 100%
(parted) quit
Information: You may need to update /etc/fstab.

5.接下来你就可以看到/dev/sda3分区的大小已经变化,看End值

root@pve:~# fdisk -l
Disk /dev/sda: 58 GiB, 62277025792 bytes, 121634816 sectors
Disk model: VMware Virtual S
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: 0C17A6FD-69E2-401F-97C8-209F38118AC9
 
Device Start End Sectors Size Type
/dev/sda1 34 2047 2014 1007K BIOS boot
/dev/sda2 2048 1050623 1048576 512M EFI System
/dev/sda3 1050624 121634782 120584159 57.5G Linux LVM
 
 
Disk /dev/mapper/pve-swap: 3.9 GiB, 4160749568 bytes, 8126464 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
 
 
Disk /dev/mapper/pve-root: 7.8 GiB, 8321499136 bytes, 16252928 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

6.更新物理卷的大小,当然这里前提是使用了LVM

pvresize /dev/sda3

提示

Physical volume “/dev/sda3” changed
1 physical volume(s) resized or updated / 0 physical volume(s) not resized

扩容逻辑卷

1.通过/etc/pve/storage.cfg, 可看到以下内容

root@pve:~# cat /etc/pve/storage.cfg
dir: local
path /var/lib/vz
content iso,vztmpl,backup
 
lvmthin: local-lvm
thinpool data
vgname pve
content rootdir,images

local-lvm 实际上 是对应 pve VG卷组里的data 逻辑卷(lv)

2.执行

lvdisplay

获取LVM逻辑卷具体信息

root@pve:~# lvdisplay
— Logical volume —
LV Path /dev/pve/swap
LV Name swap
VG Name pve
LV UUID ArHV9L-H5ZI-M4gs-Gj1M-4bFV-qbWO-K2VYk4
LV Write Access read/write
LV Creation host, time proxmox, 20200702 19:06:14 +0800
LV Status available
# open 2
LV Size <3.88 GiB
Current LE 992
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:0
 
— Logical volume —
LV Path /dev/pve/root
LV Name root
VG Name pve
LV UUID L1MtJ0-LX2s-JfVn-5bTY-WdM8-jfxZ-Gi2oTD
LV Write Access read/write
LV Creation host, time proxmox, 20200702 19:06:14 +0800
LV Status available
# open 1
LV Size 7.75 GiB
Current LE 1984
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:1
 
— Logical volume —
LV Name data
VG Name pve
LV UUID AYiySQ-K6O5-Ye17-XAtF-m154-tRoG-mljDuL
LV Write Access read/write
LV Creation host, time proxmox, 20200702 19:06:15 +0800
LV Pool metadata data_tmeta
LV Pool data data_tdata
LV Status available
# open 0
LV Size <14.00 GiB
Allocated pool data 0.00%
Allocated metadata 1.58%
Current LE 3583
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:4

3.使用pvs命令查看物理卷(PV)使用情况。

root@pve:~# pvs
PV VG Fmt Attr PSize PFree
/dev/sda3 pve lvm2 a– <57.50g <29.88g

可以看到还有29.88g的剩余空间
4.使用lvextend命令扩容逻辑卷。

lvextend [-L +/- <增减容量>] <逻辑卷名称>

例如

lvextend -l +100%FREE /dev/pve/data

提示

root@pve:~# lvextend -l +100%FREE /dev/pve/data
Size of logical volume pve/data_tdata changed from <14.00 GiB (3583 extents) to 43.87 GiB (11231 extents).
Logical volume pve/data_tdata successfully resized.

提示扩容成功

5.使用

pvs
lvdisplay

确认扩容成功

root@pve:~# pvs
PV VG Fmt Attr PSize PFree
/dev/sda3 pve lvm2 a– <57.50g 0
root@pve:~# lvdisplay
— Logical volume —
LV Path /dev/pve/swap
LV Name swap
VG Name pve
LV UUID ArHV9L-H5ZI-M4gs-Gj1M-4bFV-qbWO-K2VYk4
LV Write Access read/write
LV Creation host, time proxmox, 20200702 19:06:14 +0800
LV Status available
# open 2
LV Size <3.88 GiB
Current LE 992
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:0
 
— Logical volume —
LV Path /dev/pve/root
LV Name root
VG Name pve
LV UUID L1MtJ0-LX2s-JfVn-5bTY-WdM8-jfxZ-Gi2oTD
LV Write Access read/write
LV Creation host, time proxmox, 20200702 19:06:14 +0800
LV Status available
# open 1
LV Size 7.75 GiB
Current LE 1984
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:1
 
— Logical volume —
LV Name data
VG Name pve
LV UUID AYiySQ-K6O5-Ye17-XAtF-m154-tRoG-mljDuL
LV Write Access read/write
LV Creation host, time proxmox, 20200702 19:06:15 +0800
LV Pool metadata data_tmeta
LV Pool data data_tdata
LV Status available
# open 0
LV Size 43.87 GiB
Allocated pool data 0.00%
Allocated metadata 1.59%
Current LE 11231
Segments 1
Allocation inherit
Read ahead sectors auto
– currently set to 256
Block device 253:4

在pve控制端网页也显示正常,增大到43.87G
RrwG.png


参考:
解决Linux系统中硬盘的GPT PMBR大小不匹配的问题将通过写入错误进行纠正
扩容LVM逻辑卷
Proxmox虚拟系统PVE的磁盘分区及文件系统分析总结
‘lvextend -l 100%FREE’ resizing to the number of free extents rather than adding them to the current size in RHEL
初识LVM及ECS上LVM分区扩容
proxmox ve (PVE) 调整虚拟机(VM)的磁盘大小
Extend local-lvm?

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