Pete Zaitcev (zaitcev) wrote,
Pete Zaitcev
zaitcev

Seagate and SMR in 2020

Back in 2015, I wrote about Seagate Kinetic and its relation to shingles in Seagate product. Unfortunately, even if Kinetic were a success, it would only support a fraction of workloads. But the rest of Seagate customers demanded density increases. So, to nobody's surprise, Seagate started including shingles into their general purpose disk drives, perhaps only for a part of the surface, or coupled with a flash cache. The company was an enthusiastic early adopter of hybrid drives, as a vendor. Journalists are trying to make a story out of it, because caches are only caches, and once you started spilling, the drive slows down to the shingle speed. But naturally, Seagate neglected to mention in their documentation just how exactly their drive worked. Sacre bleu!

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