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Windows 7: Turning off second HDD

05 Mar 2016   #21
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Roland has the answer.

But turning it off, na ya can`t do that, but if I only did a backup once a month I would just disconnect the drive, it only takes a minute or less.


My System SpecsSystem Spec
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06 Mar 2016   #22
Layback Bear

Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
 
 

Okay, we are trying to re-invent the wheel.
Just unplug the drive and put it some place safe. Done.
My System SpecsSystem Spec
07 Mar 2016   #23
westom

 
 

Quote   Quote: Originally Posted by LovelyFlipper View Post
Am I the only person that ever wanted to turn off a backup Hard Drive?
Do most people just let them run? Just curious.
Understand some basic semiconductor concepts. Semiconductors use PN junctions to isolate the various circuits in an integrated circuit. That means voltage on all other pins must remain within VCC and Ground so that reverse currents do not pass through those PN junctions - that are not intended to conduct current. If you disconnect DC voltages (ie VCC), then voltages on signal wires might exceed those limits - causing semiconductor damage.

Some semiconductors are specially designed to avert this damage. Is that true of semiconductors in your disk drive? I have never seen disk drive specifications that says yes or no. So I (and others) cannot say if that might cause damage or overstress.

Good practice is to always remove AC power cord from its wall receptacle before disconnecting both DC voltage and signal cables from that drive.

Is that desirable? First define what is to be protected from. What is the life expectancy of a disk drive? Maybe 100,000 hours. That means operating ten hours every day for ... 27 years.
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 Turning off second HDD




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