 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> Stephen <mca### [at] aol com> wrote:
>
> I've had sporadic success with the "put the HDD in the freezer" technique.
> In theory, you should only need to get the drive working reliably _once_ for as
> long as you need to transfer the files to a shiny new drive(s).
Hmm, sounds a bit like 'Monty Python' science. Do I cast the Runes while doing
so, to see if the auspices are good? (Kidding, kidding. Sorry, I couldn't resist
;-P
I guess that's basically for a drive that's overheating(?) The trouble with mine
is that it no longer even starts or comes on electrically. I *think* the problem
stems from the fact that I dropped it onto a (rug-covered) floor, from a 3-foot
height off my desk. Dumb. But I didn't think such a minor(??) shock would affect
it so badly. A hard lesson learned.
>
> Following that logic, I'm sure that all of us here at news.povray.org would very
> much appreciate HD video of you transferring files from your drive while it's
> submerged in a Dewar filled with liquid nitrogen, argon, or helium.
I've already ordered the helium. Now I just need to build the Dewar...and the
pumps...
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Kenneth" <kdw### [at] gmailcom> wrote:
> Hmm, sounds a bit like 'Monty Python' science. Do I cast the Runes while doing
> so, to see if the auspices are good?
It's likely the hard drives are Made In China (TM), so you need to use the I
Ching.
> I guess that's basically for a drive that's overheating(?)
No. I'm not sure _exactly_ why, but empirically it seems to work > 0% of the
time for people that Santa has on his Nice list.
I hate speculate, but, oh, well, if you insist...
I think it has something to do with the metal contracting in the cold, and
freeing up parts that are binding (bearings) or touching when they're not
supposed to be (platters & read/write heads}
> The trouble with mine
> is that it no longer even starts or comes on electrically. I *think* the problem
> stems from the fact that I dropped it onto a (rug-covered) floor, from a 3-foot
> height off my desk. Dumb. But I didn't think such a minor(??) shock would affect
> it so badly. A hard lesson learned.
Hmm. I take _everything_ apart, and I'd say that 90% of the time it's bad
contacts. In technical terms, "It's a loose wire", or with motors, it's usually
a filthy commutator and soot-caked graphite brushes.
This is different than having a brush with a filthy communist.
You can get head lice from that.
That's a pattern of proximity you don't want to repeat (or initialize).
[just to stay on-topic ;) ]
So I'd say disconnect any ribbon cables or connectors, and re-seat them,
possibly after wiping or rinsing with electrical cleaner, isopropyl alcohol, or
just a dry paper towel or cotton swab.
> I've already ordered the helium.
Excellent! The boil-off ought to spectacularly enhance your girlish squeals of
delight when my ingenious plan comes to fruition!
> Now I just need to build the Dewar
"Large Thermos bottle" / styrofoam cooler
....and the
> pumps...
I'm not sure where you're going with that, but it sounds NSFW....
:P
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Bald Eagle" <cre### [at] netscapenet> wrote:
> I think it has something to do with the metal contracting in the cold, and
> freeing up parts that are binding (bearings) or touching when they're not
> supposed to be (platters & read/write heads}
I guess it depends on the vintage.
Yours is likely Digitalais nouveau...
(That's different than digitalis, which is a cardiotoxic glycoside from the
heart-stoppingly beautiful foxglove.)
https://www.pcworld.com/article/3035017/storage/that-old-freezer-trick-to-save-a-hard-drive-doesnt-work-anymore.html
https://www.google.com/search?q=hard+drive+in+freezer&rlz=1C1CHFX_enUS633US634&oq=hard+drive+in+freezer&aqs=chrome.0.0l
6.3498j0j7&sourceid=chrome&ie=UTF-8
I actually have 2 old IDE Western Digital HDD's that I need to see if I can
transfer the data from one to the other (or any other drive)
One looks good, and the other is slightly corroded...
I'd explain why, but it's a long and terrifying story - because reality is
SOOOOO much stranger than fiction.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On 26/09/2017 20:11, Bald Eagle wrote:
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>
>> I think it has something to do with the metal contracting in the cold, and
>> freeing up parts that are binding (bearings) or touching when they're not
>> supposed to be (platters & read/write heads}
>
> I guess it depends on the vintage.
> Yours is likely Digitalais nouveau...
>
> (That's different than digitalis, which is a cardiotoxic glycoside from the
> heart-stoppingly beautiful foxglove.)
>
You're pushing your metaphors. ;)
>
https://www.pcworld.com/article/3035017/storage/that-old-freezer-trick-to-save-a-hard-drive-doesnt-work-anymore.html
>
>
https://www.google.com/search?q=hard+drive+in+freezer&rlz=1C1CHFX_enUS633US634&oq=hard+drive+in+freezer&aqs=chrome.0.0l
> 6.3498j0j7&sourceid=chrome&ie=UTF-8
>
>
I was going to mention the freezing the HDD. But the above put me off.
You're other advice about cleaning contacts, is spot on. :)
I used to use an old fashioned eraser if no one was looking.
> I actually have 2 old IDE Western Digital HDD's that I need to see if I can
> transfer the data from one to the other (or any other drive)
> One looks good, and the other is slightly corroded...
> I'd explain why, but it's a long and terrifying story - because reality is
> SOOOOO much stranger than fiction.
>
Yes, that's an acceptable reason not to say. :)
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On 26/09/2017 20:36, Stephen wrote:
> You're other
Sorry. :(
--
Regards
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Am 26.09.2017 um 21:01 schrieb Bald Eagle:
> Hmm. I take _everything_ apart, and I'd say that 90% of the time it's bad
> contacts. In technical terms, "It's a loose wire", or with motors, it's usually
> a filthy commutator and soot-caked graphite brushes.
> This is different than having a brush with a filthy communist.
> You can get head lice from that.
> That's a pattern of proximity you don't want to repeat (or initialize).
> [just to stay on-topic ;) ]
...
>> I've already ordered the helium.
>
> Excellent! The boil-off ought to spectacularly enhance your girlish squeals of
> delight when my ingenious plan comes to fruition!
How about liquid nitrous oxide as an alternative? Sounds like you have
some experience with that ;)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> "Kenneth" <kdw### [at] gmailcom> wrote:
>
>> Hmm, sounds a bit like 'Monty Python' science. Do I cast the Runes while doing
>> so, to see if the auspices are good?
>
> It's likely the hard drives are Made In China (TM), so you need to use the I
> Ching.
>
>> I guess that's basically for a drive that's overheating(?)
>
> No. I'm not sure _exactly_ why, but empirically it seems to work > 0% of the
> time for people that Santa has on his Nice list.
> I hate speculate, but, oh, well, if you insist...
>
> I think it has something to do with the metal contracting in the cold, and
> freeing up parts that are binding (bearings) or touching when they're not
> supposed to be (platters & read/write heads}
>
Not overheating per see, but often a thermal correction problem.
When a drive get warm, it expand, making it gain in radius. This cause
the tracks to shift.
The frimware is designed to compensate for that by adjusting the heads
placement according to the current temperature of the drive. It can
happen that the thermal sensor could fail, or the logic could get
corrupted, preventing the correction from taking place.
If you coll it down enough, then, no thermal correction is needed and
you can access the data, untill the drive get warm again.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Kenneth" <kdw### [at] gmailcom> wrote:
>
>
> Hmm. I take _everything_ apart, and I'd say that 90% of the time it's bad
> contacts.
Taking things apart is my usual modus operandi as well; but a hard drive seems
like a Rolex watch to me-- finicky, full of tiny mysterious precision parts,
etc. (Not that I own a Rolex!) But now that you mention it: The HD data-recovery
companies I've researched all say this on their websites, in one form or
another: "WE have a dust-free *clean room* for fixing your HD. That's better
than taking it apart yourself." Well, my first thought was: "People actually
take apart their own HDs themselves and fix them??!" I've never been bold enough
to attempt it... but the thought intriques me. (I do understand the 'dust-free
environment' warning, but maybe its been a bit overhyped? After all, those
companies are in the business of selling a service-- while making sure we are
SCARED to attempt it on our own workbenches.)
>
> ....and the
> > pumps...
>
> I'm not sure where you're going with that, but it sounds NSFW....
>
No, not that kind of pumps, the other kind of pumps! REFRIGERATION pumps! ;-P
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On 26-9-2017 9:11, Thomas de Groot wrote:
> ..and to support my case: I have been doing some little sculpture in
> between.
>
... and here is the latest version; using the Norbert Kern / James
Holsenback brass texture for the clothing.
--
Thomas
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On 27-9-2017 9:45, Thomas de Groot wrote:
> On 26-9-2017 9:11, Thomas de Groot wrote:
>> ..and to support my case: I have been doing some little sculpture in
>> between.
>>
>
> ... and here is the latest version; using the Norbert Kern / James
> Holsenback brass texture for the clothing.
>
Well, should have attached the image :-)
--
Thomas
Post a reply to this message
Attachments:
Download 'ep_proximity_test.jpg' (94 KB)
Preview of image 'ep_proximity_test.jpg'
|
|
| |
| |
|
|
|
|
| |
