Shrink local-lvm and extend root?

[bpbp]

Hi all, wondering about the safety of doing reducing the size of local-lvm (it's unused, we use Ceph for VMs) and adding more space onto the pve root filesystem?

for example

lvreduce --resizefs --size -100G /dev/pve/data
lvextend -l +100%FREE /dev/pve/root
resize2fs /dev/pve/root

 

[Dunuin]

pve/data is a thin pool and you can't shrink those. You would have to destroy it and recreate it with a smaller size: https://forum.proxmox.com/threads/reduce-size-of-thin-pool.88923/post-399386

 

[bpbp]

I see, thank you