Author Topic: EEVblog #395 - World's Most Expensive Hard Drive Teardown  (Read 44449 times)

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Offline cwalex

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #50 on: December 12, 2012, 11:16:38 am »
It was a really nice teardown as usual by Dave but I like the more standard off the shelf kinds of tear downs as I learn more about product design (do's and don'ts) etc  but honestly I would rather see dave get heaps of exposure so he can make more out of his new full time gig! than just see more stuff that I personally like to see.

Good videos as always Dave! Thanks for all that you do for us :)
 

Offline EEVblog

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #51 on: December 12, 2012, 11:49:37 am »
Holy smokes this teardown is getting tons of attention! Front page Gizmodo, Extreme Tech and Hackaday

Yeah, probably my most popular video to date in terms views in such a short time.

Dave.
 

Offline JoannaK

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #52 on: December 12, 2012, 10:19:22 pm »
Was expecting something a bit bigger... But I'd assume there's not many of those PDP-8 era (or older) hard drive units available. We (bunch of Uni students) did purchase one (with PDP-8) about 30+ odd years ago, not that we'd needed but it was kinds funky to have fridge/Freezer size HD system with removeable platters.

Not sure where those parts are these days.. Not even sure if I could find any photos of the system.
 

Offline alanb

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #53 on: December 17, 2012, 12:06:11 pm »
Quote
Posted by: JoannaK
« on: December 12, 2012, 10:19:22 PM » Insert Quote
Was expecting something a bit bigger... But I'd assume there's not many of those PDP-8 era (or older) hard drive units available. We (bunch of Uni students) did purchase one (with PDP-8) about 30+ odd years ago, not that we'd needed but it was kinds funky to have fridge/Freezer size HD system with removeable platters.

Try Googling CDC Hawk.
 

Offline JoannaK

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #54 on: December 18, 2012, 01:54:06 am »
Quote
Posted by: JoannaK
« on: December 12, 2012, 10:19:22 PM » Insert Quote
Was expecting something a bit bigger... But I'd assume there's not many of those PDP-8 era (or older) hard drive units available. We (bunch of Uni students) did purchase one (with PDP-8) about 30+ odd years ago, not that we'd needed but it was kinds funky to have fridge/Freezer size HD system with removeable platters.

Try Googling CDC Hawk.

Something like that for sure.. Kinda scary when one starts to think about those platters turning ..
 

Offline alanb

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #55 on: December 18, 2012, 12:53:14 pm »
Quote
Kinda scary when one starts to think about those platters turning ..
The most scary part was the voice coil / actuator mechanism. I once met a service engineer who had lost three fingers on his right hand when a the voice coil was actuated with his hand in the way.
 

Offline pista24

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #56 on: December 23, 2012, 07:35:49 pm »
Hi,

which videocam do you use to record this video? Especially macro mode for magnetic heads.

Thanks.
 

Offline SL4P

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #57 on: April 01, 2014, 11:38:26 am »
Around a decade before this drive, I was working on DEC hardware, and specifically the RK05 (2.5MB) and RL01/2 (5/10MB) drives attached to LSI-11 systems.
It's interesting to see the similarities and throwback concepts - but despite being built like battleships they were extremely fragile in transit and in use.
Don't underestimate the voice-coil positioners. They would seek sequential tracks in under 2mS, and to any track under 6mS with a LOT of force. The'd have your finger f it was in the way!.
A colleague had his flashy bling ring melted onto hois finger by shorting across the power supply to the positioner... !   An optical strip encoder provided the track position feedback to the positioning electronics.
The RL0x drives were a bit more friendly - higher data density / slightly slower seek speed, and used another strategy common back then - with one surface pre-formatted with index data (effectively hard sectored)

Great to have the memories brought up !
Don't ask a question if you aren't willing to listen to the answer.
 

Offline aqarwaen

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #58 on: September 02, 2016, 09:30:31 pm »
does anybody knows how you recover data from theys??my workplace got 2 theys kinds hdd.only issue is ,computer what used them are dead.both hdd are located at basement..any  clue how can i get data from them and connect with pc??they mostly collect dust there
« Last Edit: September 02, 2016, 09:44:44 pm by aqarwaen »
 

Offline Brumby

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #59 on: September 03, 2016, 02:37:23 am »
My first suggestion is to find somewhere that still has one of these running ... probably a museum by now ... and see if they would be prepared to try and load it.

But I think you will have another problem.

I take it those drives haven't been accessed for some years - so I would highly doubt they would be readable.  The magnetic domains have likely deteriorated over time.
 

Offline digsys

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #60 on: September 03, 2016, 07:40:06 am »
Now we're going back. I can't recall if it was a SCSI or MFM interface, but you may find an old PC that still has a ISA (16?) bus. If so, it should be pretty easy,
especially with a disk recovery program. ie RSTUDIO r-tools tech
In cases where the hardware had failed, we used to use a chemical to "stain" the magnetic material, then high res photograph it. Someone had a program
that just re-encoded the headers etc, Most / all of the professional data recovery companies use that technique. On those large platters and such low data
density, it is quite easy.
Hello <tap> <tap> .. is this thing on?
 

Offline Fungus

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Re: EEVblog #395 - World's Most Expensive Hard Drive Teardown
« Reply #61 on: September 03, 2016, 08:43:11 am »
I'm sure there'll be a USB adapter cable somewhere on eBay.  :popcorn:

 


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