So this HDD died a couple weeks ago, just got around to looking at it... >Warranty Expired December 27 2018 Lovely.
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Since it's now a display piece, let's take some macro photos of the head stackpic.twitter.com/tGtGEltlz0
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Here's one of the head head-on. I assume the actual read/write elements are mostly where that dark spot in the center is.pic.twitter.com/d2KoDmgS56
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I guess this is going in the "things to stick in the SEM" box.
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Huh, neat. I wouldnt have been surprised by piezo buzzers for vibration cancellation, but I had never thought about the need for vertical positioning. It makes sense, though.
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AFAIK they're not used for that. In high-performance drives, they are used to achieve more precise track positioning than the voice coil positioner, and to provide faster seeks within a very limited range of the voice coil position.
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