Here are some IT situations than can resolve this. Onsite , Cloud, Hosted or Crowd.
Onsite means - use a hardware to back yr data up. Server or likewise. Offsite means it will be hosted at a Webhost / Co-location or otherwise and it's almost the same as an OnSite and Cloud... you know what its all about.
Crowd is a new kind of technology but with an older mind attached to it. Think of it as the old Napster / MIRC piracy days where one copy of the file is copied across so many peers and if you need just one file, so many peers can send you the file across the globe, bits and bobs of it.
With the era of BlockChain , ERC 2.0 and et al, I have been toying about with Tardigrade.io using Storj as the underlining backbone of the storage hosts aka Nodes. Each copy of your file is Fragmented and each fragment is hosted by at least 5 nodes and encrypted.
It looks to be an S-3 compatible BLOB technology comparative to the AWS or Azure and it's not blocked by the Chinese Firewall. And in terms of process and speed, that is up to the network satellite and cross connectivity as some are linked with E1 and some like me are linked up with GBE connections and a more preferred node.
Price wise at 1c/Gb for the store will work to about 1.5c per GB of data delivered meaning a typical LTO of 6TB will likely cost you about $100 without the need of the LTO Device, Tapes and Power.
Compare this against a $20k CAPEX cost for the drive alone and tapes.. ouch... it's a hands down winner.
Being having users all over the place, then we have the luxury of the data being segregated and not having a bottle neck across the data feed.
"But I die die want to have onsite" is a mentality which is GOOD that works well with the CROWD.
I have a customer which is a Hogger... 450TB of data... ONSITE...and if anything goes... I say God Save Em... and with a 1Gbps link (Read GPON-upload is 500Mbps)... means it will take em 79 days to upload the whole frigging data onto the network, which is a killer.
That being said, a good management of data is critical to this business case.