12 years ago I certainly did not know why a servers IO would be slow, short of just the physical storage was slow. I think you might just be overestimating how much stuff people knew rather than the whole population forgetting how filesystem and IO internals work.

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dijit 5 days ago | parent [-]

you hadn’t heard of RAID, readahead, write-back/write-through, stride or even just the concept of fragmentation?

Even if you didn’t, I doubt you didn’t have someone on staff who did know about these things and would help out randomly with troubleshooting and avoiding footguns.

	▲	SchemaLoad 5 days ago \| parent \| next [-]
		The people who knew about those things back then know modern infrastructure today. I'm sure if you asked the average web dev 12 years ago what write-back io is they wouldn't have any idea. Perhaps the only trend is more companies not hiring anyone who specialises in infrastructure and just leaving it as a side task for React devs to look at once every few months.
	▲	oceansky 4 days ago \| parent \| prev \| next [-]
		I knew about RAID and fragmentation, but I haven't had to work with it since I went from tech support to backend, it just never came up so it's easy to forget.
	▲	flexagoon 5 days ago \| parent \| prev [-]
		https://xkcd.com/2501/