Hybrid drives had largely fallen out of fashion since their heyday in the early to mid 2010s. The promise then was similar to what Seagate is offering now. A large HDD is combined with a smaller SSD and handed to the user as a single storage pool. Apple introduced its own hybrid solution back in 2012 with the Mac mini’s Fusion Drive. When Ars opened up a unit, the Fusion Drive system was found to write in 128KB tiered blocks. Information was generally written to the SSD first, and was then migrated to the HDD as needed. If the files were frequently used, they might find a more permanent
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