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sosrecup
 Post subject: platters looks weird
PostPosted: February 3rd, 2015, 10:54 
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Joined: September 7th, 2012, 16:37
Posts: 197
Hi,

Is there a chance/solution/technique to recover data from a such disk (HDS725025GLA380) :
[img]

[/img]


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Doomer
 Post subject: Re: platters looks weird
PostPosted: February 3rd, 2015, 11:10 
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Joined: September 29th, 2005, 12:02
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Location: Chicago
What you see is massive media damage
All data is in the filter now
Cannot be recovered

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lcoughey
 Post subject: Re: platters looks weird
PostPosted: February 3rd, 2015, 11:30 
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Joined: February 9th, 2009, 16:13
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Location: Ontario, Canada
...drive is toast.

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sosrecup
 Post subject: Re: platters looks weird
PostPosted: February 3rd, 2015, 11:43 
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Joined: September 7th, 2012, 16:37
Posts: 197
Thank you for your reply.

Could anyone tell me what could cause this damage please?
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Doomer
 Post subject: Re: platters looks weird
PostPosted: February 3rd, 2015, 13:28 
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sosrecup wrote:
Could anyone tell me what could cause this damage please?

HSA sliders filed down the surfaces

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data-medics
 Post subject: Re: platters looks weird
PostPosted: February 3rd, 2015, 13:35 
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Joined: April 3rd, 2011, 0:19
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I would guess the top slider came off and the arm was just scratching the surface for some time.

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Keatah
 Post subject: Re: platters looks weird
PostPosted: February 4th, 2015, 3:04 
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Joined: April 26th, 2012, 1:52
Posts: 388
Location: Chicago, USA
What if you ran the spindle motor backwards, would it re-deposit the data? And could quantum entropy software decode it?

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northwind
 Post subject: Re: platters looks weird
PostPosted: February 4th, 2015, 9:06 
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Joined: January 28th, 2009, 10:54
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Location: Greece
This reminds me of a drive that's been in the freezer and then powered on.

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samurai7
 Post subject: Re: platters looks weird
PostPosted: February 4th, 2015, 9:28 
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Joined: November 24th, 2014, 4:42
Posts: 13
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Sorry for offtop but I have question about the "dust" on the filter. What is it this "dust", it is the rest of the magnetic layer that platters are covered?
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Doomer
 Post subject: Re: platters looks weird
PostPosted: February 4th, 2015, 9:43 
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samurai7 wrote:
Sorry for offtop but I have question about the "dust" on the filter. What is it this "dust", it is the rest of the magnetic layer that platters are covered?

Yes, it is platters' top layers shredded to dust.
That dust is in the filter, as well as it's the origin of the "ornament" on the surfaces

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Keatah
 Post subject: Re: platters looks weird
PostPosted: February 4th, 2015, 16:22 
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Joined: April 26th, 2012, 1:52
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The surface texturing you see is part of the raw/crude first stages of polishing the platters.

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samurai7
 Post subject: Re: platters looks weird
PostPosted: February 4th, 2015, 17:24 
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Joined: November 24th, 2014, 4:42
Posts: 13
Location: Poland
@Doomer
Thank you for the explanation.
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