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hmac
2016 Feb 03
3
Strange performance issue on CentOS 6.7 server
On Feb 3, 2016, at 16:13, Warren Young wrote:
> A dying hard disk can do it. HDDs try to silently paper over I/O errors, but what they can?t hide is the time it takes to do this. If your HDD is constantly correcting errors at the oxide layer, it will be reeeeeallly sllllow.
>
> You can try running SMART tests on it, though that?s not guaranteed to show the problem.
Well, it?s not ?a?