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 Post subject: Slow raw recovery.
PostPosted: March 9th, 2017, 12:03 
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Joined: May 14th, 2015, 18:29
Posts: 52
Location: Poland
I'm recovering data from NTFS partitions in raw mode.
Is it normal that it takes out extremely slowly? Within five hours it has been scaned only 20M sectors (whole drive 3900 M sectors)
The HDD is ok.


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 Post subject: Re: Slow raw recovery.
PostPosted: March 9th, 2017, 15:19 
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Joined: March 19th, 2015, 15:01
Posts: 1239
Location: isreal
andy17d wrote:
The HDD is ok.

Probably its not OK, about 9.53GB in 5 hours ?! Doesn't seems to me OK


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 Post subject: Re: Slow raw recovery.
PostPosted: March 9th, 2017, 15:32 
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Joined: December 8th, 2013, 4:48
Posts: 606
Location: Pakistan
agreed, drive has some issue e.g bad sectors, check s.m.a.r.t status

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 Post subject: Re: Slow raw recovery.
PostPosted: March 9th, 2017, 16:46 
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Joined: May 14th, 2015, 18:29
Posts: 52
Location: Poland
There is no error in the SMART. Binary copy speed is about 15-35 MB/s into the file. Also to slow.


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 Post subject: Re: Slow raw recovery.
PostPosted: March 11th, 2017, 17:02 
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Joined: May 14th, 2015, 18:29
Posts: 52
Location: Poland
I lost my patience. After 2 days scanned Data Extractor scanned only 600M sectors.
For comparison PhotoRec in 8 hours passed 55% of the disk i.e. about 1 TB.
Where is the problem with the DE?


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 Post subject: Re: Slow raw recovery.
PostPosted: March 11th, 2017, 19:34 
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Joined: September 8th, 2009, 18:21
Posts: 9285
Location: Australia
PhotoRec is running at 38 MB/s whereas DE is achieving less than 2 MB/s. Is it possible that DE is stuck in PIO mode?

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