I know I am late to this conversation, but a good backup management program I like/use is Bacula. It handles storage and recovery of data in a fairly user friendly manner, does incremental, differential, and full backups on a schedule you set up, and transfers data to pools of data storage spaces you define. It breaks the backup management into 3 parts, each of which can, and typically do, run on different systems. A file director runs on each system to be backed up and manages the retrieval of data to be backed up. With the file director you can specify what to, or not, backup. A storage director handles the data storage, and of course there is the main director itself which oversees the entire process of backups and retrievals. It's a bit hard to understand at first, but has a lot of flexibility and is used in a lot of commercial environments. It is modeled on the usage of tape drives for backing up data, but translates into disk drive storage quite easily.

And no, I am not employed by Bacula or in anyway connected to them. Just a user and I use Bacula to store my personal computers/laptops data off site myself.

Marc....

On 11/11/24 12:43, Dave Howorth wrote:

I just read a newspaper article about house fires, and it struck me
that one of the things that might well be lost in such a mishap would
be my financial records etc that are stored on my computer. All
carefully backed up to a local disk :)

So I need to consider an offsite backup. What do people use and/or
recommend? My initial thinking is to install some sort of disk and
computer (pi?) in a nephew's house and install some automatic backup
software.

So I'm open to suggested implementation ideas or alternative ideas. I'd
like to avoid solutions that involve subscriptions.

TIA, Dave