NAND flash advancements put pressures on mechanical drive manufacturers like Seagate and Western Digital to store more data on the same unit. In fact, it’s far more difficult to reduce the performance gap with solid state drives than to increase the data density one. SSDs can’t match old school HDs in a price per GB competition and this situation is going to last many years.
Thanks to Seagate, it’s now possible to store 1TB in a single square inch, almost the double of what we have in high capacity drives (about 620GB). The manufacturer achieved this results using a new technologies called heat-assisted magnetic recording (HAMR) that will substitute the consolidated Perpendicular Magnetic Recording (PMR).
We are not going to see HAMR-based drives anytime soon but the result proves that mechanical HDs are here to stay for many other years. At least as backup solution.
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