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Disk Utility may not warn of a failing hard drive
Authored by: stokessd on Oct 01, '10 05:39:50AM

Be careful, S.M.A.R.T. really only is useful for drives that are slowly and gracefully degrading. In my home life I've replaced three drives in my raid in as many years. I've got smartd set to email me if it detects anything wrong with the drives (linux box). I'll get an email that a drive is dead and I'll check the logs and it was fine until it died. Bam, just toast.

In my experience smart is really good about telling you the obvious (you don't have a drive anymore), but pretty hit or miss about warning you before the fact.

Backups are the only way to have a reasonable probability that you wont lose data. No backup means sooner or later you will lose data.


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