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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What we do . . .

August 8th, 2014, 12:15

Here's a photo of a tiny read/write head from a laptop hard drive. To give you a better sense of scale, I've positioned it to look like a mustache on a dime, making Roosevelt's visage appear like his WWII nemesis.

A 2 TB laptop drive has 8 of these tiny heads in a stack. Sometimes we have to spread them apart and clean them . . . all under a microscope. The heads are very delicately attached to arms. One small mishap and the head stack is toast.
Attachments
Roosevelt small.jpg
Roosevelt small.jpg (133.72 KiB) Viewed 6480 times

Re: What we do . . .

August 8th, 2014, 13:26

jono-ats wrote:I've positioned it to look like a mustache on a dime, making Roosevelt's visage appear like his WWII nemesis.


:lol:

Re: What we do . . .

August 8th, 2014, 13:47

nice scale comparison .... puts a perspective on the "should i take the lid off and.." type of questions we see.


"Little Britain" take :)
http://blogimages.project76.tv/blog/old/Waterman.jpg

WD20EARS with bad heads

August 8th, 2014, 13:55

jono-ats wrote:A 2 TB laptop drive has 8 of these tiny heads in a stack. Sometimes we have to spread them apart and clean them . . . all under a microscope. The heads are very delicately attached to arms. One small mishap and the head stack is toast.
And sometimes we have to recover the data even when those heads look funny, not like a stack at all.
Attachments
WD20EARS-smashed-heads.jpg
WD20EARS with smashed heads

Re: What we do . . .

August 10th, 2014, 10:15

thanks for the pictures

:)

Re: WD20EARS with bad heads

August 20th, 2014, 3:51

Dmitri wrote:And sometimes we have to recover the data even when those heads look funny, not like a stack at all.


Did this drive fall off a skyscraper or something? 8)

WD20EARS with damaged heads

September 20th, 2014, 17:06

northwind wrote:
Dmitri wrote:And sometimes we have to recover the data even when those heads look funny, not like a stack at all.
Did this drive fall off a skyscraper or something? 8)

Unfortunately, at this moment I can't tell for sure what was the story behind that job. During their infrequent spare time our guys also like to do different interesting things and taking such pictures is among them.
So I just pulled this photo, but the file name contained nothing besides the model. Also modification date is mid-2011, so no way to remember what happened back then.

But generally yes, that's either a physical influence or a power loss at an appropriate moment (quite possible thing for a drive with outward parking).

Re: What we do . . .

September 20th, 2014, 17:40

hi Dmitri!

:shock: i have sawn lot of this heads
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