Reduce local-lvm and increase local for backup

[sampah1010]

i would be grateful if a steps by steps can be shown to reduce my local-lvm (reduce 100G) and increase local for backup (add 100G). thanks alot.

root@ironhide:/# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 1.7T 0 disk
├─sda1 8:1 0 1007K 0 part
├─sda2 8:2 0 1G 0 part
└─sda3 8:3 0 1.7T 0 part
├─pve-swap 252:0 0 8G 0 lvm [SWAP]
├─pve-root 252:1 0 96G 0 lvm /
├─pve-data_tmeta 252:2 0 15.9G 0 lvm
│ └─pve-data-tpool 252:4 0 1.6T 0 lvm
│ ├─pve-data 252:5 0 1.6T 1 lvm
│ ├─pve-vm--100--disk--0 252:6 0 200G 0 lvm
│ ├─pve-vm--102--disk--0 252:7 0 100G 0 lvm
│ └─pve-vm--101--disk--0 252:8 0 1.5T 0 lvm
└─pve-data_tdata 252:3 0 1.6T 0 lvm
└─pve-data-tpool 252:4 0 1.6T 0 lvm
├─pve-data 252:5 0 1.6T 1 lvm
├─pve-vm--100--disk--0 252:6 0 200G 0 lvm
├─pve-vm--102--disk--0 252:7 0 100G 0 lvm
└─pve-vm--101--disk--0 252:8 0 1.5T 0 lvm

root@ironhide:/# vgs
VG #PV #LV #SN Attr VSize VFree
pve 1 6 0 wz-

root@ironhide:/# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
data pve twi-aotz-- <1.60t 38.66 1.49
root pve -wi-ao---- 96.00g
swap pve -wi-ao---- 8.00g
vm-100-disk-0 pve Vwi-aotz-- 200.00g data 69.95
vm-101-disk-0 pve Vwi-aotz-- 1.46t data 32.42
vm-102-disk-0 pve Vwi-aotz-- 100.00g data 5.24

 

[bbgeek17]

Hi @sampah1010 , welcome to the forum.

The high level steps are:
a) backup your VMs
b) remove storage pool lvm-thin from PVE
c) delete the LVM data VG
d) resize LVM root VG
e) resize root fs
f) recreate data VG/pool

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[sampah1010]

thanks @bbgeek17.

and lastly g) restore from my backup?

 

[bbgeek17]

Its optional, if you need the data...

Or you can buy a new disk and mount it to /var/lib/vz for backup use

PS or anywhere else and create new directory storage pool dedicated to backup

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[Impact]

You can also create a volume on the thin pool and format and mount that.