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Power Fail while running level 5

#1

V

vmax5000

I was running level 5 on a 16TB drive and was about two thirds the way through and had a power fail. Would the power fail cause errors to the disk? Will I have to start from the beginning again?
Thanks


#2

P

PHolder

vmax5000 said:
Would the power fail cause errors to the disk?
Click to expand...
Depends on what you mean by errors. if you had data that mattered, it's likely that some of that is now gone.


#3

V

vmax5000

I'm not too worried about losing data, I just wondered it it would have caused physical damage.
Thanks


#4

Tazz

Tazz

vmax5000 said:
about two thirds the way through
Click to expand...
vmax5000 said:
Will I have to start from the beginning again?
Click to expand...

Since you have a rough idea of where is was when the power failed you can start SpinRite a little before that point. If there's any physical damage it should be apparent in the scan (or failure of a scan).

To start at a specific spot - Press the spacebar to select the drive to work on then press 'Enter'. On the next screen press the 'TAB' key to be able to select the starting and ending points for SpinRite to work on. Navigate with the arrow keys.


#5

V

vmax5000

Thanks


#6

0x6A7232

0x6A7232

vmax5000 said:
I was running level 5 on a 16TB drive and was about two thirds the way through and had a power fail. Would the power fail cause errors to the disk? Will I have to start from the beginning again?
Thanks
Click to expand...
Physical damage to modern (after mid 90s?) hard disks is exceedingly rare. They automatically park the heads on power off. Put it this way:
Does your drive need a park command before power off? The answer will likely be the same to that question & whether physical damage is possible from a simple power failure.
The complication would be brownout (less than 100% power) before a failure, however any good PSU will kill the power if it detects inadequate power from the wall, and I'd imagine that also holds true for the motherboard, as well as the logic board controlling the hard disk.

Short answer: is physical damage possible from power interruption?
99.999999999% answer: no
Exception: POWER SURGE
While that may sometimes precede a power failure, it is a separate event.

However you should really be using a surge protector, no exceptions.


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