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Thanks opovet for the info. https://discussions.virtualdr.com/
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[This message has been edited by greengoose1 (edited 07-09-2001).]
any of you guys ever read how MTBF is estimated?
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Yo Diddly, come from the voodvork out!
Jaak, I have not. https://discussions.virtualdr.com/
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From what I understand, MTBF is at best a "guesstimate" after only a few hours of running the hard drive through some hard paces. Wouldn't put too much stock in the numbers (hours). Now, a 10 year warranty would be real nice.... https://discussions.virtualdr.com/
I would have to find the zine this was in...
the gist of it...
take a fairly large number of drives, and hook them up to have them continiously go through their paces.
time it when one fails, time it when second fails.
(cannot remember if that includes stressing by repeated spin-ups)
employ statistics
imho, an almost meaningless number is obtained.
RMA would be useless as they have no statistics on the time the drives actually ran?
would like to find back article...
if 100 drives pass 100 hours, does that make 10.000 hours?
the method was explained...but I do not remember how the statistical calculation went
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Yo Diddly, come from the voodvork out!
Found the formula!
Take 25 5600rpm hard drives>run at 10,000rpm for 10 hours>bring speed down to normal>autoplay a looped Quake demo for 24 hours>place drives in freezer; freeze for 10 hours>place frozen drives in microwave oven on HIGH for 4 1/2 minutes or until tender>then take 5600rpm, divided by your IQ, subtract the projected profit of those drives from selling them to unsuspecting customers> add 10 hours just for good measure> Viola! MTBF count!
[This message has been edited by bistro (edited 07-10-2001).]
bistro
4 1/2 minutes under the gun
Bet someone gets a blast out of it.
LOL ROF
Probably the way they do it though https://discussions.virtualdr.com/
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[This message has been edited by Train (edited 07-10-2001).]
Then,,,try to find a drive that wasn't assembled on a Monday by someone hung-over from the weekend.. https://discussions.virtualdr.com/ https://discussions.virtualdr.com/ https://discussions.virtualdr.com/ https://discussions.virtualdr.com/
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Get off my Interface!!
What's the optimum operating max and min temperatures that can be exceeded to ensure a proper failure of the serially connected components? https://discussions.virtualdr.com/
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Between a Oxyacetaline torch and liquid Oxygen, they should take care of it https://discussions.virtualdr.com/
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Train, Or how about a 105 for max performance.
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I dunno...if I reach 105 degrees, my MTBF is about 5 minutes....
If the thing overheats you could throw it in a Cryo bin, that will cool it down quick....
And our collective point is?
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Don't get a hard drive with a MTBF of 5 hours....
Look at the warranty also when considering a hard drive. If they have a long warranty, it's probably based on their MTBF "research".
Fans, fans, fans. Cool that sucker down.