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 Post subject: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 7th, 2019, 6:35 
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Joined: March 9th, 2017, 6:16
Posts: 127
Location: trinidad
hello Friends
I have got a recovery job of Seagate 500GB laptop hard disk .
It has normal detection , I have made backup of firmware / rom as well in pc3k.
It has multiple firmware issues like smart fail / shock sensor warnings / weak heads etc.
While Head 0 is perfectly fine , head 1 is weak and data copying speed is extreme low - 0Kbps - 50Kbps (I am using PIO mode ,but higher speed does not improve data transfer speed)
What should be my ideal steps as most of the professional do ?
I dont want to do experimentation with client data so have not reset smart or tried anything else .
If someone could pls help with correct steps ,I will be grateful .


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 Post subject: Re: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 7th, 2019, 8:37 
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Joined: March 6th, 2010, 3:46
Posts: 627
Location: Kolding | Denmark
I would take out and examine heads, to be sure they are not damaging media. Most likely switch heads, my donor stock of yarra´s is "full"
Stabilize the drive by disable functions in sys93, image fs meta data and target imaging on mission critical data. Then image the rest of data.

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 Post subject: Re: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 7th, 2019, 9:37 
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Joined: November 29th, 2006, 10:08
Posts: 7864
Location: UK
digisupport wrote:
I would take out and examine heads, to be sure they are not damaging media. Most likely switch heads, my donor stock of yarra´s is "full"
Stabilize the drive by disable functions in sys93, image fs meta data and target imaging on mission critical data. Then image the rest of data.


Very good advice!

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 Post subject: Re: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 8th, 2019, 3:24 
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Joined: March 9th, 2017, 6:16
Posts: 127
Location: trinidad
digisupport wrote:
I would take out and examine heads, to be sure they are not damaging media. Most likely switch heads, my donor stock of yarra´s is "full"
Stabilize the drive by disable functions in sys93, image fs meta data and target imaging on mission critical data. Then image the rest of data.


Hi Thank you digisupport
You have saved my day. :good: :-D


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 Post subject: Re: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 11th, 2019, 6:47 
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Joined: March 9th, 2017, 6:16
Posts: 127
Location: trinidad
hi guys
I have done all as you have suggested (disabled functions in sys93) and reset smart ,but that has not improved response from one of the head .
For one head (0) speed is normal but for Head 1 is in few kb/sec.
Is this because of weak head 1 or some other firmware component is responsible


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 Post subject: Re: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 13th, 2019, 17:39 
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Joined: October 3rd, 2005, 0:40
Posts: 4753
Location: Hungary
you need to get around the weak head by replacing it. That's the best you can do to improve cloning speed. However, if the speed is low due to bad sectors (surface problems) replacing the MHA may not give much better results.
There are ways of getting a better picture of what the real cause is, as well as making a weak head read again, but these are out of scope right now.
the simplest you can do is replacing the MHA and move on.


pepe

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 Post subject: Re: Seagate Laptop Thin Hard disk Recovery help
PostPosted: December 14th, 2019, 9:18 
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Joined: March 9th, 2017, 6:16
Posts: 127
Location: trinidad
pepe wrote:
you need to get around the weak head by replacing it. That's the best you can do to improve cloning speed. However, if the speed is low due to bad sectors (surface problems) replacing the MHA may not give much better results.
There are ways of getting a better picture of what the real cause is, as well as making a weak head read again, but these are out of scope right now.
the simplest you can do is replacing the MHA and move on.


pepe

Thank you pepe sir :D
Yes you are right this has happened many times.Even after replacing healthy heads due to defective zones recovery has failed . You might be able to go and trace root cause on deeper level .


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