PVE Backup

Hi

this dependence on the used storage backend.
If your storage is a Filesystem based storage you have a file that you can copy.
If it is a Blockdevice you can use tools like dd/qemu-img to convert it in a file.

1.) https://pve.proxmox.com/wiki/Storage
 
Then for the Guest images, the images dir is important.
If your guest data are on the default local storage the path is
/var/lib/vz/images/

The guest config is here
/etc/pve/qemu/
/etc/pve/lxc/
 
What would be the reason for doing this vs using the proxmox built in backup, which creates a single file?
- You would be able to restore that onto any new proxmox node.....