[jlbooker]

Restore from off-site tape backup. The kind of service where you ship them ~dozen new tapes in a lockbox each week and they ship you the oldest dozen back. It's supposed to be the "if all of a data centers happen to burn to ashes simultaneously" option. If you say "give us all of our tapes, asap" and then have some pour souls swapping them out as fast as the data can be read... it would probably take a few weeks.

[RL_Quine]

Tapes are not that slow, 360MB/s per drive, and on a large scale swapping them is completely automatic.

[stonogo]

In support of your point, 360MB/s is an extremely conservative estimate. I'd expect that from LTO-6, which is around ten years old, and I would certainly hope their backups are on more modern gear than that.

[Zircom]

I work for a pretty huge well-known fortune 500 company with a global presence and personally handle the tape rotations for several of our data centers, and they're all still on LTO-6 tapes

[stonogo]

I'm not sure that's relevant. I would expect Home Depot, Berkshire Hathaway, Alphabet, and Atlassian to have wildly different priorities. Two of them are Fortune 500 companies that I think would do fine with LTO-6. Atlassian is supposedly a cloud-first organization which arguably should be pretty aggressively tiered anyway, much less tiered onto outdated tech.

[KennyBlanken]

And that's just one drive. I ran a piddling departmental backup server and we had a dual-drive library.

Four drive libraries are pretty common, too.