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greglindahl | karma 9606 | avg karma 2.0 · 2015-11-10 20:11:47

That's the situation I was talking about, yes. It's much cheaper to go into the datacenter once a month to replace failed data disks than to have to go in to promptly replace any system disk HDD that fails, in order to not have 60 idle disks.

DanWaterworth | karma 2494 | avg karma 3.28 · 2015-11-10 20:22:13+00:00

Sure, that would make sense if they only had personnel in the datacenter once a month, but: "we replace about 10 drives every day" [1].

[1] https://www.backblaze.com/blog/vault-cloud-storage-architect...

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DanWaterworth | karma 2494 | avg karma 3.28 · 2015-11-11 07:37:05+00:00

To clarify, I'm not saying that they wouldn't be better off with an SSD boot drive. I'm arguing that having an HDD boot drive, given their setup, isn't awful.