proxmox ve 中扩展pvm-local空间
原因
之前在DIY E3服务器上安装的proxmox ve,用的一张120G的SSD,当时年纪轻,把pve的逻辑分区还分了一个30g的data分区出来了,现在想用local做glusterfs,那么就想把data中的空间合并到root中去了.
步骤
先拷出data分区里面的东西
- 先在
pve的webui上删除不需要的,对于需要的,先拷贝出来,我的data是挂载在/mnt/data中:
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sudo rsync -ar --info=progress2 /mnt/data/ /var/lib/vz
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sudo umount /mnt/data
sudo lvdisplay
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--- Logical volume ---
LV Path /dev/pve/data
LV Name data
VG Name pve
LV UUID xxxx
LV Write Access read/write
LV Creation host, time pve, 2020-12-13 12:19:01 +0800
LV Status available
# open 0
LV Size 30.39 GiB
Current LE 7781
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
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sudo lvremove pve/data
# Logical volume "data" successfully removed
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--- Volume group ---
VG Name pve
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 73
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 <106.60 GiB
PE Size 4.00 MiB
Total PE 27289
Alloc PE / Size 19508 / 76.20 GiB
Free PE / Size 7781 / 30.39 GiB
VG UUID xxxx
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- 可以看到有
30.39 Gib的空间,现在把他合并到pve-root:
sudo lvresize -l +100%FREE /dev/pve/root:
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Size of logical volume pve/root changed from 72.70 GiB (18612 extents) to <103.10 GiB (26393 extents).
Logical volume pve/root successfully resized.`
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resize2fs 1.46.5 (30-Dec-2021)
Filesystem at /dev/mapper/pve-root is mounted on /; on-line resizing required
old_desc_blocks = 10, new_desc_blocks = 13
The filesystem on /dev/mapper/pve-root is now 27026432 (4k) blocks long.
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Filesystem Size Used Avail Use% Mounted on
udev 11G 0 11G 0% /dev
tmpfs 2.2G 6.5M 2.2G 1% /run
/dev/mapper/pve-root 102G 42G 56G 43% /
....
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成功了
(补充)将另一块硬盘加入到pve的volume group中去
之前还有一块120G的SSD,想把他也装进去,这块硬盘已经加到vg里面了,sudo pvdisplay:
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--- Physical volume ---
PV Name /dev/sdh3
VG Name pve
PV Size 106.60 GiB / not usable <2.55 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 27289
Free PE 0
Allocated PE 27289
PV UUID xxxx
"/dev/sdf1" is a new physical volume of "119.24 GiB"
--- NEW Physical volume ---
PV Name /dev/sdf1
VG Name
PV Size 119.24 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID xxxx
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加入vg
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sudo vgextend pve /dev/sdf1`
# Volume group "pve" successfully extended`
sudo vgdisplay
# output:
--- Volume group ---
VG Name pve
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 75
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 <225.84 GiB
PE Size 4.00 MiB
Total PE 57814
Alloc PE / Size 27289 / <106.60 GiB
Free PE / Size 30525 / <119.24 GiB
VG UUID qTOzVc-TkpO-iokP-8JGO-3MNo-4Id0-TAsIYi
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可以看到已经有119.24G空闲空间了
扩展lv
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sudo lvresize -l +100%FREE /dev/pve/root`
### output:
Size of logical volume pve/root changed from <119.24 GiB (30525 extents) to <222.34 GiB (56918 extents).
Logical volume pve/root successfully resized.
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- 扩展文件系统空间:
sudo resize2fs -p /dev/mapper/pve-root
- 结果:
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resize2fs 1.46.5 (30-Dec-2021)
Filesystem at /dev/mapper/pve-root is mounted on /; on-line resizing required
old_desc_blocks = 13, new_desc_blocks = 28
The filesystem on /dev/mapper/pve-root is now 58284032 (4k) blocks long.
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完成
总结
感觉 lvm在空间管理这块还是蛮方便的,只是,他的pv, vg, lv,一开始太绕,入门有点门槛,不像直接fdisk后格式化挂载那么方便.