Comment by themafia

Too slow to allow batched backups. Which means you should just make redundant copies at the time of the initial save. Encrypt a copy and send it offsite immediately.

If your storage performance is low then you don't need fat pipes to your external provider either.

They either built this too quickly or there was too much industry corruption perverting the process and the government bought an off the shelf solution that was inadequate for their actual needs.