Single disk drive - Possible to flip disk when 1 head fails?

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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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jordash
  • jordash
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Single disk drive - Possible to flip disk when 1 head fails?

August 14th, 2019, 11:24

For a drive with a single double sided disk with 2 heads, if one head fails but drive will still initialise ok, does anyone know if theoretically you'd be able to image half the drive with the working head, then flip the disk over and image the other side with that working head?
ddrecovery
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Re: Single disk drive - Possible to flip disk when 1 head fa

August 14th, 2019, 11:30

If you think about it turning the disk over will make it spin backwards. Get a piece of card and mark an arrow on it pointing the same way on both sides. Then turn the card over and you will see it would spin backwards.
Amarbir[CDR-Labs]

Re: Single disk drive - Possible to flip disk when 1 head fa

August 14th, 2019, 13:33

jordash wrote:For a drive with a single double sided disk with 2 heads, if one head fails but drive will still initialise ok, does anyone know if theoretically you'd be able to image half the drive with the working head, then flip the disk over and image the other side with that working head?


Well,
That Would Be a Nice Experiment ,But it should not work cos the servo info will not match the sector that its trying to fetch ,Generally when a head fails it should be properly inspected so that we come to know why it failed ,If its crashed on platter recovery would be very hard ,Which Drive is it BTW
melvin
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Re: Single disk drive - Possible to flip disk when 1 head fa

August 14th, 2019, 14:05

jordash wrote:then flip the disk over and image the other side with that working head?

You can hear Satan calling this way, like it was with vinyl's backmasking :lol:

But no, it will not work, sorry.
Dananjaya
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Re: Single disk drive - Possible to flip disk when 1 head fa

August 14th, 2019, 15:48

100% not working.
jordash
  • jordash
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Re: Single disk drive - Possible to flip disk when 1 head fa

August 15th, 2019, 9:19

Amarbir[CDR-Labs] wrote:Which Drive is it BTW


1tb 3.5" Hiatchi HDS721010DLE630. Damn, head replacement it is then.
jasonboneo
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Re: Single disk drive - Possible to flip disk when 1 head fa

August 26th, 2019, 7:01

never thought of that.
HaQue
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Re: Single disk drive - Possible to flip disk when 1 head fa

August 26th, 2019, 7:44

could flip it, then image in reverse ;-)
MindMergepk

Re: Single disk drive - Possible to flip disk when 1 head fa

August 26th, 2019, 7:49

jordash wrote:For a drive with a single double sided disk with 2 heads, if one head fails but drive will still initialise ok, does anyone know if theoretically you'd be able to image half the drive with the working head, then flip the disk over and image the other side with that working head?


with this description, it will not work.

The best way to get useful advice is to share the complete drive information, problem etc.
maybe someone can help you in right direction.
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