On Jan 23, 2005, at 7:30 PM, Nick Bachmann wrote:
> As I understand, if HD activity is minimal, the probability of HD > failure is significantly reduced.
HDDs don't fail because they lose power.
Unless the heads crash, which can happen if power fails. I know HDD manufacturers have done "head unloading" and such recently, but the risk is still higher if power is suddenly lost during a write.
And, in fact, some drives *do* have problems with sudden outages. Some recent IBM drives will interpret sectors that were only partially written when the power failed as bad blocks and refuse to read or write to them when the power comes back on. I wouldn't be surprised if other drives have similar problems. FWIW, we have a drive in a test system at work that started developing problems immediately after a power outage a couple months ago. It might be just a coincidence, but the timing was right--the power went out in the afternoon, and the evening SMART media check found bad sectors.
Scott
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