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Hard Drive noise damping

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Hoopz:


--- Quote from: Xiaou2 on May 14, 2008, 08:03:07 pm ---Ill go by my own experiences and logical deductions.

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:laugh2:

DrewKaree:


--- Quote from: Xiaou2 on May 14, 2008, 08:03:07 pm ---
Ill go by my own experiences and logical deductions.


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--- Quote from: Sez ---
This does not compute


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NIVO:


--- Quote from: Xiaou2 on May 14, 2008, 08:03:07 pm ---
 Who is to say that Google's report is accurate?   Whos to say that they dont have some
behind the scenes deal with HD people?    Whos to know if the UPS guy drop kicked some of
those drives?   Whos to know if the companies that send them,  or the employees that install
them are not grounded to prevent static discharge - thus damaging the controllers?
There is a wealth of data that is missing and can never be known.. yet you accept it as
solid fact?   

 Who has more to gain by fudged numbers?   Certainly not me.   I dont sell HDs, nor case fans... nor
am I a billionaire.   

 You believe what you want to believe.  Ill go by my own experiences and logical deductions.



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this isnt whoville  ;D this is arcadecontrols.com

patrickl:


--- Quote from: Xiaou2 on May 14, 2008, 08:03:07 pm ---
 Who is to say that Google's report is accurate?
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A 100,000 disk test set vs a home user with only a few disks?

Of course the Google report is pretty specific (disks running 24/7 in airconditioned server racks), but any conclusion you draw from your limited test set is useless at best.

Lets assume your hard disks are rated at 400,000 MTBF. That would mean an average annualized failure rate of 2%. With 8 disks running for 3 years that means a 48% chance that one breaks. So if none failed, does that mean that you improved things or simply that it was the 52% chance that no disk would fail?

It's nice that you want to come up with your own conclusions, but if you had any training in probability calculations you'd know you need a much larger test set to draw any reliable conclusions. You'd need to run hundreds of disks and wait for at least some percentage of disk failures before you can estimate the AFR. You'd need to repeat this test in both setups to see if any change occurs. Since I doubt you will be going through all that, I'm afraid you will have to rely on other people's conclusions on the matter.

On the other hand if at first you were running your disks so hot that they were outside of the allowed operating temperatures for the disk, then sure that would ruin them pretty quickly. When you have modern disks running between 35 and 45 degrees Celsius then there's no need to cool them.

patrickl:


--- Quote from: CheffoJeffo on May 14, 2008, 09:09:08 pm ---If the drive is getting noisier (as you seem to suspect), it may well be on its way to failure ... building it a hammock should probably rank behind making a backup and getting a replacement drive.



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yeah, I was wondering that too, but then Minwah said that it changed after moving it off the carpet. The carpet might have removed some of the vibration noise before.

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