Very much not an expert, but I think this is talking about a whole different technology. This is holographic storage within a 3-D medium.
The article explains that the technology is 20+ years old, but didn't seem to occupy an optimal point on the frontier of throughput and cost, which is the major tradeoff for long-term storage devices. But it says with the physical limits of spinning magnetic disks on the horizon, it's worth looking at holographic again.
It further explains that to characterize the cost, you have to consider that the data has to be refreshed periodically, because reading degrades it, so that must be considered in the cost. And then they describe a protocol for doing the reads and refreshes that has good results.
The article explains that the technology is 20+ years old, but didn't seem to occupy an optimal point on the frontier of throughput and cost, which is the major tradeoff for long-term storage devices. But it says with the physical limits of spinning magnetic disks on the horizon, it's worth looking at holographic again.
It further explains that to characterize the cost, you have to consider that the data has to be refreshed periodically, because reading degrades it, so that must be considered in the cost. And then they describe a protocol for doing the reads and refreshes that has good results.