“G-Drive, which stands for Government Drive and is not a Google product, was used by government staff to keep documents and other files. Each worker was allocated 30GB of space.”
“The G-Drive couldn’t have a backup system due to its large capacity,” an unnamed official told The Chosun.
858TB.
“Large Capacity”
Government.
Sigh 
Today I discover that the forum badly needs a “wow” reacc.
I honestly thought I hallucinated this story because it came and went on my feeds so quickly. Good to see someone else saw it.
That’s like… one 4U drive tray, right?
Was wild seeing all their servers stacked up in those large baths being hosed down by firefighters, as if they plan some kind of data recovery operation.
Well, if they had 858TB of user data to lose, figure there has to have been at least 1PB actual total capacity, and hopefully more like 2PB.
Now figure 50x 20TB drives per raw PB total capacity, and you’re looking at something like one obnoxious 4u or 5u JBOD box per PB, so 8u or 10u total. That gives you enough capacity to have the system no more than 70% or so full at the time it died, after a reasonable amount of parity or redundancy.