Why you shouldn’t put your drive into the freezer…

Pipes frozen by liquid nitrogen

Image courtesy of tibchris. Click on the image and you will be forwared to the author's page.

The common sense makes us believe that hot temperatures decrease the lifespan of our drives… Google doesn’t think so and recently published a research article that supports its theory. The paper is very interesting and I strongly believe that every system administrator should read it.

The study, performed by Google’s staff on a large sample of consumer HDs, provides strong evidence that activity levels and high temperatures aren’t the main causes of hard disks failures. In fact, temperatures below 25° Celsius are related to very high AFR (average failure rates).

Magnetic disks seem to reach their highest reliability ratings in a range of temperatures between 30° and 40°. The article will relax datacenter designers that struggle to contain the operating temperatures of the SANs.

So what have we learned from the Google’s paper? Never put a HD in a freezer, maybe its better to put a blanket on it..

Of course we are kidding!

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