How many hard disks fail?Of thomas - 6 Apr 2008 14:10:00 This article explains the interesting discussion of new studies and findings on the failure probability or lifetime of hard disks. The manufacturers claim a measure of the lifetime in MTBF (Mean Time Between Failures), ie the average time that a hard drive will run until it fails. This value is for a consumer 3.5 "500 GB hard drive, for example, 600,000 hours of operation (ie approximately 70 years). As the probability value, but he says nothing about the life of a single hard drive off - and is a poor guide when a buyer wants to know how fail-safe hard drive. The more meaningful measure is the probability of a hard drive during 1 year Duration fails. But new studies appreciate the value of the manufacturers often with 0.58% - 0.88% is much higher On: usually about 1%, with 2-4% and up to 13%. It was synonymous that hard continuously age and thus the default probability increases steadily - so far it was assumed that the age S.5 first years of operation period the probability of default increased. surprising: a study of Google says that the hard disks in a system have failed, often combined with other hardware (controller, cables) work.
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Antwort von Markus:
But new studies appreciate the value of the manufacturers often with 0.58% - 0.88% is much higher: ...
Estimates of this nature are inherently imprecise and subject to large fluctuations. I bet the test conditions of the Manufacturer synonymous not exactly correspond to a real scenario.
So usbekannt that the lifetime of warmth and reliability of hardware components is not just a positive influence, but have increasingly in recent years billlige, external hard disks distributed, with no adequate (active / passive) cooling feature and that is in continuous warmed significantly (= much too hot to even touch it).
For hard disks that are installed in PCs, however, is often synonymous cooling forgotten. Then sit somewhere in the hard casing and warm each other, while the synonymous Processor and the graphics card with at least one air-cooling equipment.
Since I synonymous internal hard disks in my computers actively cool, gives me no longer broken. This is not just a cost savings, but mainly trouble saving a synonymous (data loss).
Antwort von dennzus:
Just as it is. Wechelplatten also have extra problems.
Supposedly there faulty hardware in the first 3 months on your mind, quite apart from that a well-known company in front 1-2 Jshren had massive problems, bez. their customers
Antwort von darg:
I think this will always Waermeproblem often underestimated, but since it's almost only 7200er there is a big factor. With my new rig, I have all the plates under Luftkuehlung and even a small fan on the plate is already very much. What uses one of the coldest Processor, where the periphery is burning? The hook s.Datenverlust on the hard drive but, as the report already mentioned synonymous of other components are triggered. One of my boards has pictures destroyed, if that has put up. But there were only pictures, documents and it was not independent of the software used. Moribund plates, I had really only once before about 7 years. Western Digital had a few problems with 6GB batches had. Since I record about the company my father had received was 3, which over a short time and showed problems piece by piece failed. Well, Shit Happens ...
Axel, San Jose
Antwort von schwerwiegender Fehler:
Mir is never ne abgeraucht plate. even though I have since 4 years the dinger rumfliegen and had it with me are really not easy. You make me fearful. Always thought that really does not happen. (So as not cancel a plate and then data loss ...)