Given current business practices in the US, the rational thing to do is train your replacements incorrectly, but in such a way as their lack of training is only noticeable after you are fired, or long enough after the training has taken place that it can't be tracked down to your specific instruction.
When the geek turns to thoughts felonies he contrives schemes so finely calibrated that they cannot possibly work.
RAID controllers do not launch reads on all involved drives. That would be stupid.
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For a RAID1, most RAID controllers (and software RAID implementations) will absolutely read from all devices so as to service the read ASAP.
For distributed parity forms of RAID, you inherently have to read from all devices.
For dedicated parity disk forms of RAID, you have to read from all devices except the parity device.
I've never tried a mixed RAID1 of SSD and magnetic disk, but with a large enough write cache the theory seems reasonable. Most controllers [with a BBU] acknowledge the write as soon as it hits cache.
Because Microsoft and Facebook want and abundant (and therefore cheap & expendable) workforce.
The geek is economically and socially illiterate.
What Microsoft and Facebook needs are customers who feel financially secure, have a generous amount of disposable income, and the more of them, the better.
Microsoft typically pays about 15% above market. The lowliest entry level software engineer at Microsoft earns about $80,000/yr. Average Salary for Microsoft Corp Employees
The median household income in the US is $52,000.
It's a little amazing to me than a lowly Slashdot poster outwitted the entire engineering division at Amazon...
Instead of answering the question, you are just talking around it.
It wouldn't be the first time that the geek has relied on sarcasm as a substitute for brain-work.
The courier drone will be perfectly safe so long as it serves only the middle class suburbs and grander estate homes --- quiet side streets, fenced in back yards, no strangers about.
Always draw your curves, then plot your reading.