Guy wrote:
RAID does not cause bad data!
Guy - how can you speak such heresy!! ;) Haven't you seen the special 'make_undetectable_error(float p)' function?
Bad data can get on any disk, even if it is part of a RAID system. The bad data does not come from the hard disk, CRCs prevent that.
The problem is: Where does the bad data come from?
Bad memory? No, everyone use ECC memory, right?
I like to blame cosmic rays - I just like the image ;)
Of course voltage fluctuations, e/m interference, thermal variations, mechanical interfaces, dust capacitance/resistance, insects shorts... anywhere inside the tin box between the media and the corners of the motherboard. It's amazing that some machines even boot.
David
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