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Old 04-06-2019, 09:57 AM   #1
edver1
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Default Rumors that M2 SSD lose data

What is there real going on ?
In some media are rumors that M2 SSD drives loos data when they aren't used and powerless ?
There are articles that say they will loos and other deny that ?
Any body have experiences or know more about it?
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Old 04-07-2019, 10:29 AM   #2
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Not sure that those rumours just apply to M.2 SSD media but I have read claims that SSDs and USB pen drives need to be used/powered up to avoid long term loss of data. Not had this problem myself but advise clients to use USB drives annually to be on the safe side. Peter
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Old 04-07-2019, 11:03 AM   #3
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It's all so "fluid"data,stored in a "few" chips,temperature would also had an effect on it,is it "fake news" or is it real ?
That's the downside of fast media (internet) somewhere someone starts something and how fast it starts it's own life.
I have now for a few years a Sata SSD and now a few months an M2.0 SSD,bud had also no problems with it,I hope it stay's that way.
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Old 04-07-2019, 11:35 AM   #4
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I did not believe this but then had some SSDs sitting around with data on, on a shelf and had not opened them for a few months. When I did, some of the data was corrupt. So it would appear to be true. Everything I read suggested it would take several months and just having some power going through them would be ok.
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Old 04-07-2019, 04:07 PM   #5
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in a word, yes: all SSD's sooner or later may lose data when in a powerless state. It mainly varies according to the technology and storage temperature.
Flash NAND memories (cheaper and slower) retain data for a longer time compared to RAM-based banks which, instead, are much faster. In some cases, the latter is supported by a super-capacitor acting as battery both during the writing cycle and in their on shelf state. Unfortunately, most manufacturers limit the publication of data retention info.
Overall rule: SSD's stored @ 20C retain their data twice longer vs 30C.
Did I say "in a word"? haha!
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Old 04-08-2019, 02:44 AM   #6
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Does this mean we are better off choosing "old school" hard discs, rather than SSD for long term archival storage?
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Old 04-08-2019, 04:22 AM   #7
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I think if you want to have real long term security then tape is the best choice like this https://www.quantum.com/products/tap...o-5/index.aspx. One can find a half height internal version for about $1500 and 1.5T tapes are about $20
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Old 04-08-2019, 02:32 PM   #8
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So to be secure ,OS and Edius are on my M2.0 SSD witch is also my boot "disk" : have a disk clone or iso file of the SSD and in case of emergency copy it to the boot disk and your'e back running in no time.
A "normal" HDD in the PC casing but not connected until its necessary.
I know this is mention not that long ago,but what's the best way to make / have such clone / ISO disk.
And I'm not going mentioning the license .
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Old 04-08-2019, 03:36 PM   #9
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For the bravest I retrieved an informative JEDEC document.
https://www.jedec.org/sites/default/...0Mode%5d_0.pdf

At least it's a useful reading in case of wake up at night: two pages and...bamm! :)
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Old 04-08-2019, 05:05 PM   #10
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Quote:
Originally Posted by Ron Evans View Post
I think if you want to have real long term security then tape is the best choice like this https://www.quantum.com/products/tap...o-5/index.aspx. One can find a half height internal version for about $1500 and 1.5T tapes are about $20
Don't get warm fuzzies about things with moving parts. Isn't that a step backward? How is a tape machine and cassette any more reliable than anything else with moving parts that will eventually fail?

I guess the best safeguard is always redundancy for critical data, with similar and alternative media.
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