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by xabuq
2833 days ago
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Sometimes I think about what kind of yak shaving it takes to put together some menial technical detail, and I just throw the idea out, if it doesn't feel like the implementation is clean enough. If someone told me that in order to take a picture of some natural landscape, I'd have to throw 7 brand new 8TB hard drives in the garbage, in order to capture a 64 megapixel image, I'd say "not worth it." It challenges one's natural disinclination towards waste. I think that's a pretty normal gut response. Gifted with an a priori awareness of certainty of return on investment, it makes sense dive in, get knee deep, ignore the intuition that wells up around thoughts of sunk cost fallacies, and push through the hard parts. But when you're not a fortune teller, that risk aversion tends to help, more than harm. But, you know, maybe that's the kind of thing that separates people like me from true success. |
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at the time there were 32 file servers, each with a 60 disk array attached. Thats almost 2000 spinny disks.
At that scale we'd expect about one failing disk every two weeks+. We were covered by a 24/7/365 4 hour warranty. This means that a replacement disk will appear within 4 hours, anytime of the year.
From what I understand the old disks are taken back, examined, refurbished and sent out again. I've heard that its often head alignmet, and or track setup issues that cause the most problems.
But yeah, there is waste....
+in practice we had a lot more disks than this, as we needed fast online backup. so we'd normally have at least two failed disks a week.