I clone my proxmox primary disk (120GB SSD) to a new 250GB SSD with clonezilla.
After with gparted I assigned the unused space to the existing partition but I can't find it in pve.
Where am i wrong?
The /dev/sda3 is the physical volume and you need to extend that. For example boot GParted Live for partition management. Or try gdisk manually while the system is running (more risky).
EDIT: I got the question wrong in my previous answer..