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music archive, 100 year method
music archive, 100 year method
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Old 16th October 2017, 06:18 PM   #41
jfetter is offline jfetter  United States
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Its sort of an experiment, the 500Gb drive came from my macbook. I had not booted it in many years : 5 to 8 .
Since it came up no problem i thought it was a good test subject.

Will do the same using two 256Gb USB flash. They have been buried in parafin previously and powered up no problem after retrieval.

My goal is to have three caches going, eventually abandoning older sites without retrieving.
The flash is still expensive so will probably retrieve three years or so.

My wife said not to tell anyone I bury data backups , that I would be perceived as a wackjob.
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Old 16th August 2018, 03:46 PM   #42
jfetter is offline jfetter  United States
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I have dig up the 500gb.
It mounted correctly and has now been reformatted to store mp3 with NTFS.

There was water intrusion into a pin hole in paraffin but not into the inner wrapper of hd.
Probably in 6mo to a year the water would have reached hd.

So have to rethink waterproofing.

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Old 16th August 2018, 04:18 PM   #43
Pano is offline Pano  United States
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music archive, 100 year method
Wow. Kinda surprising that you had water get that close with all the trouble you went to. How long do you think the drive would last if kept dry?

I would love to digital archives of my photos, mail, music and other odds and end from 30 or 50 years ago. I don't even have the hard copies of most of that stuff anymore.
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Old 16th August 2018, 05:13 PM   #44
jfetter is offline jfetter  United States
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I think 5 years minimum and max is unknown. The bearing grease may flow out has been suggested. But warming up for a few days 180 out of buried position probably would fix. Then there is the flash on hd...



I did just power up a flash 256GB has been unpowered three years, no problem.



A long term solution probably is more complex using a lithium battery to power-up every three months using low power mcu.
Or visit the storage site and have a cable easily accessible to power up few seconds.


The low viscosity Si adhesive is good for this but we don't have access to the industrial/aerospace non out-gassing type.




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Old 16th August 2018, 06:29 PM   #45
Andersonix is offline Andersonix  Sweden
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Quote:
Originally Posted by Pano View Post
Wow. Kinda surprising that you had water get that close with all the trouble you went to. How long do you think the drive would last if kept dry?
Melted wax, a tin can, and duct tape would have lasted 50 years around here. But then a ziploc bag would last 100 years...
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Old 17th August 2018, 03:03 AM   #46
jfetter is offline jfetter  United States
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Yep that's what I used. It had a pin hole in wax, I guess from air rising out of the tin.
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Old 17th August 2018, 03:11 AM   #47
Pano is offline Pano  United States
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Houston is much wetter than Marin county.
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Old 30th August 2018, 03:43 PM   #48
jfetter is offline jfetter  United States
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I had an epiphany moment today.

Flash drive in glycerin bath.


Saw the SATA flash drives $$$ coming down now. Been waiting for that.


.
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Old 30th August 2018, 04:01 PM   #49
Mark Johnson is offline Mark Johnson  United States
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Fluorinert might be better than glycerine. Petroleum jelly might too.
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Old 31st August 2018, 02:55 AM   #50
davidsrsb is offline davidsrsb  Malaysia
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Binary storage on paper at reasonable density
http://ollydbg.de/Paperbak/

No modern electronics will work for more than a decade or so, flash self erases in time, so the microcontrollers will die.
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