I guess you may have alot of files, but to me object storage is so cheap I keep copies on Aws S3, wasabi, r2 and a 16 TB HDD on my hetzner server.

Admittedly 4 might be too many. But at some point I switched to r2 for the free public egress and deleting one of Aws or wasabi has never been a priority and I don't want to do it without putting in the time to quadruple check I'm not deleting anything important.

But at the very least id have 3. I'd hate to discover that my S3 was blown up in a war and then copying everything my HDD was the last straw that pushed an aging drive over the edge.