I have a machine that contains 128 G SSD and 1T HDD,
I want to install Proxmox ve on the 128G SSD, and configure pve-data to be on 1T HDD
Is there any way to do that ???
Yes, this is possible.
Just install it on the SSD, you can choose it in the installer.
Then you have to create a thin-lvm on the HHD.
see https://pve.proxmox.com/wiki/Storage:_LVM_Thin