Reply to post: Major issue

Intel offers ingenious piece of 10TB 3D NAND chippery

Alan Brown Silver badge

Major issue

Higher density doesn't always mean lower prices

Write wear and speed aren't a major issue.

Firstly: large disks have far lower percentages of writes, which means the sparing load is much reduced.

Secondly: Samsung stepped back to ~40nm architecture when they went to 3d, specifically because it's a lot faster and more robust (and cheaper to fabricate)

Spinning rust drives _are_ less reliable than flash ones, the failure rate at work is testament to that (thousands of drives, flash fails at a rate of less than 1% of rust)

Now that Sammy are offering 3-10year warranties and almost all the spinners come with 12 months, the math favours flash even though rust is much cheaper upfront.

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