LEAP 15.2 Options for backup

I'm currently using zip to a USB thumb drive to backup my OS/2; that's adequate but not ideal. I could extend the technique to using tar for my Linux partitions, but I'd like to take a look at more sophisticated options. Ideally, I'd like a package that could

• Backup entire partitions at medium or long intervals, with compression
• Do incremental backups at shorter intervals
• Automatically figure out the correct incremental or full backup for restoring a file
• Manage external backup media
• Not require Internet access
• Lend itself to scripting
• A GUI would be nice but not essential
• Backing up the OS/2 (FAT32, JFS and bootable JFS) partitions would be nice but not essential.

Deja Dup has some but not, AFAIK, everything that I want. Any advice or recommendations? Thanks.