“For the last 15 years, it has always been the next tier to fall, but now there is only one tier left, and only one reason left to use disk, and that’s cost. That’s the tier we’re talking about today. This is the lowest tier of online data storage, but it also represents a huge portion of bytes being stored, as well as the growing majority (more than 70%) of hard drive capacity shipped each year. Since flash memory’s entrance into the enterprise storage arena, it’s been knocking down hard disk tiers one by one, from top to bottom, until now there’s really only one tier left where disk drives maintain a market share advantage: nearline, capacity-focused drives. In fact, in the data center of 2023, the idea of “performance disk” is mostly an oxymoron. It’s important to note up front that flash has already been the obvious choice for any performance- or latency-sensitive workload for some time now. Learn how all-flash is replacing HDD in the data center. One of the predictions I made was that “new flash capacity will get within striking distance of new HDD capacity in 2023.” With 2023 underway, I thought it would make sense to explain some of my reasoning and why we here at Pure Storage are so confident that the disk/flash TCO cutover is closer than many people may realize. In December of 2022, I participated in an eWeekChat event talking about predictions for 2023.
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