Monday, September 10, 2012

Disks lie

Disks lie. And the controllers that run them are partners in crime. | Hacker News:
The behavior of hard drives is like decaying atoms. You can't make accurate predictions about what any one of them will do. Only in aggregate can you say something like "the half life of this pile of hardware is 12 years" or "if we write this data N times we can reasonably expect to read it it again."


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