how to extend LVM-Thin after reconfiguring RAID5

[davidedaps]

Hi,
I have this situation on disk:



I have migrated RAID 5 after the installation of Proxmox and now the RAID 5 volume is about 1.1T, not 752GB anymore



How can reconfigure the space to use the 230GB unused GB?

Thanks

 

[bbgeek17]

Hi @davidedaps , welcome to the forum.

Your request is not PVE specific but rather regarding general Linux system administration. There are many existing guides and discussions covering this questions. For example:
https://www.redhat.com/en/blog/resize-lvm-simple
https://askubuntu.com/questions/1489128/need-help-extending-an-lvm-volume
https://ryandoyle.net/posts/expanding-a-lvm-partition-to-fill-remaining-drive-space/
https://azvise.com/2020/09/03/linux-extend-lvm-partition-after-resizing-disk/

There may be some commands in above guides that you don't need, others may be missing for your particular set up. Read the entire guide/s completely prior to making any change.

Also, you can create a Virtual PVE (Linux) and run the steps there first. All it takes is extending the disk via PVE menu and then trying out the commands.

Good luck

---

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

 

[Kingneutron]

https://sirlagz.net/2023/07/03/updated-live-resize-lvm-on-linux/

Once you extend the partition with parted, pvresize (he misspells it in the above link) and check the script below:

https://github.com/kneutron/ansitest/blob/master/proxmox/proxmox-expand-lvm-thinpool.sh

DO NOT ATTEMPT ANY KIND OF RESIZE WITHOUT A FULL BACKUP, YOU HAVE BEEN WARNED