I have a PC with 2 S.M.A.R.T. drives, of different makes and age. Both started complaining about bad sectors this week and finally failed.
The PC didn't fall or something.
Can it be that it's a matter of a failing SATA controller or a power source?
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Grab some SMART software and test it to get a "second opinion"– DaveNov 20, 2014 at 10:31
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Well, I did - Ubuntu does have a built-in SMART tool. I saw a lot of bad blocks on one that was still barely alive. The question is - why can be they failing at the same time? Was this a power leap or something?– Victor SergienkoNov 20, 2014 at 11:16
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1I don't think we can answer this conclusively. For example, I have no way of knowing it wasn't elves with hammers (unless you don't believe in elves). It could be power, it could be bad luck, it could heat, it could be other types of radiation...– DaveNov 20, 2014 at 11:42
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@Dave, look, I'm not asking what happened with my drives. What I'm asking is - does a factor exist that can cause two different drives to fail at the same time? Did anyone observe such? Can you assign a Bayesian probability to a universe with elves, to an universe with a power leap, with a failing power source, a failing SATA controller, a bad luck? If one has a probability greater than of a "bad luck", what is it?– Victor SergienkoNov 20, 2014 at 13:33
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He just told you: it could be power, various types of radiation, or anything else (including controller failure, IMO).– DebraNov 20, 2014 at 14:47
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1 Answer
I was right disbelieving in elves and anthropic principle.
It was an external factor: my BIOS was detecting both hard drives as "SMART bad", though only one of them was actually bad.
After disconnecting both and connecting a new good primary HDD, the secondary turned out to be good.