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 Post subject: Reuse after degauss?
PostPosted: May 13th, 2020, 16:53 
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Joined: May 13th, 2020, 16:50
Posts: 2
Location: Washington DC
Hello everyone,
Is there a way to reuse a HD after it has been degaussed?

Two thoughts:
- As long as there isn't physical damage, I'd think this would be possible. I can see where the degauss'ing would cause the servo to smash in to the head though.
- A low level format seems to be what is needed.

Any idea's?


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 Post subject: Re: Reuse after degauss?
PostPosted: May 13th, 2020, 17:27 
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Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia
If it has been thoroughly degaussed, then all the embedded servo information will have been destroyed. This can only be restored with a servo track writer.

https://en.wikipedia.org/wiki/Servowriter

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 Post subject: Re: Reuse after degauss?
PostPosted: May 13th, 2020, 17:31 
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Joined: October 3rd, 2005, 0:40
Posts: 4753
Location: Hungary
exactly.

pepe

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 Post subject: Re: Reuse after degauss?
PostPosted: May 14th, 2020, 11:23 
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Joined: August 15th, 2006, 3:01
Posts: 3522
Location: CDRLabs @ Chandigarh [ India ]
fzabkar wrote:
If it has been thoroughly degaussed, then all the embedded servo information will have been destroyed. This can only be restored with a servo track writer.

https://en.wikipedia.org/wiki/Servowriter


+1

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 Post subject: Re: Reuse after degauss?
PostPosted: May 15th, 2020, 17:29 
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Joined: May 13th, 2020, 16:50
Posts: 2
Location: Washington DC
Thanks for the replies all. Very interesting, I thought the low level formatting that existed way back in the day still existed in some form, but it appears not. Given drive technology today, this is understandable.

Thanks!


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 Post subject: Re: Reuse after degauss?
PostPosted: May 15th, 2020, 18:19 
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Joined: September 8th, 2009, 18:21
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Location: Australia
This tutorial should explain things:

Tracks and Zones:
https://hddscan.com/doc/HDD_Tracks_and_Zones.html

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