On 3/23/11 7:28 AM, Alan Brown wrote:
> Phil Stracchino wrote:
>
>> Well, a good start is to use something like SMART monitoring set up to
>> alert you when any drive enters what it considers a pre-fail state.
>> (Which can be simple age, increasing numbers of hard errors, increasing
>> variation in spindle speed, increasing slow starts, etc, etc...)
> FWIW: Nexan, Xyratec and Infortrend all have SMART tracking disabled on
> their hardware arrays because they claim it usually only says a drive is
> on its way out a few hours after it died.
>
> (Personally: I use it and find that it does predict imminent drive
> failures, but usually with less than 24 hours to go. That's still better
> than no warning at all.)
>
>
Since drives ONLY fail on Friday afternoons local time, an effective 
remedy is to check for SMART messages before the weekend. Foolish as 
that is, I am surprised how many times it has held true for me.

Mehma



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