120TB hard drives are coming, thanks to new Seagate tech
120TB hard drives are coming, thanks to new Seagate tech
New hard disk tech demonstration shows potential for multi-layered granular media, with massive storage capacities coming in the future.
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The info graphic suggests that they use the different cooling rate of the first and second layer to lock in the applied magnetic field of heat assisted magnetic recording.
They beat both layers
They apply a magnetic field to save a "1" bit
Both layers are magnetized to a "1" bit
The first layer cools down and locks that bit into place permanently.
They apply the magnetic field to save a "0" bit
While the second layer is still hot and accepts the "0" orientation of the magnetic field, the first layer is already too cold and will not change its magnetization.
The second layer cools down and locks that bit into place.
Neat!