Backup is not a tool. Backup is not a software you can buy. Backup is a strategy you need to study and implement to be able to solve your specific problems.
We started a complex, continuous and not always linear operation, that is to migrate, where possible, most of the servers from Linux to FreeBSD. Here's why.
If you are using Proxmox, ZFS is one of the best local storage options. You can easily backup your lxc containers using Borg.
Alpine Linux and lxd are perfect together, especially if combined with a good file system. Let’s see how to install them on a btrfs file system.
Lxc containers are fast, small and useful. Proxmox Backup Server is quite slow with them, so here's how to perform a fast and efficient backup using Borg.