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They start heavily corrupting data if left unpowered for around a year or two though, in case this gives anyone false confidence in a use case they aren't desig

by cma 6y ago

They start heavily corrupting data if left unpowered for around a year or two though, in case this gives anyone false confidence in a use case they aren't designed for.

brokenmachine 6y ago
Do all SSDs do that? Is just powering them up every now and then enough? I mean, it's not refreshing the entire drive, is it?
- londons_explore 6y ago
  Yes, all SSD's suffer this effect. Just plugging them in often isn't enough to make them notice and refresh all data - the SSD doesn't have a clock in so doesn't know it's been unplugged for a long time. The real answer is "for every month an SSD is powered down, leave it powered up for a day"
  - athms 6y ago
    >Yes, all SSD's suffer this effect. Wrong. Stop repeating nonsense.
    - londons_explore 6y ago
      Source for my claim: https://www.anandtech.com/show/9248/the-truth-about-ssd-data-retention https://www.anandtech.com/show/9248/the-truth-about-ssd-data...
      - athms 6y ago
        Your source doesn't support your statement. The original poster stated, "They start heavily corrupting data if left unpowered for around a year or two though, in case this gives anyone false confidence in a use case they aren't designed for." A person asked if all SSDs do that and you said, "Yes, all SSD's suffer this effect." This statement is wrong. The AnandTech article even mentions the falsehoods and states it wants to clear up the confusion. A drive must meet certain conditions before data loss begins. Simply putting a backup or thumb drive in a safe for several years isn't going to cause data loss and the AnandTech article comes to this conclusion. Here is another article from PCWorld with commentary from the authors of the 2015 JEDEC presentation that started this hysteria. https://www.pcworld.com/article/2925173/debunked-your-ssd-wont-lose-data-if-left-unplugged-after-all.html https://www.pcworld.com/article/2925173/debunked-your-ssd-wo...
      - cma 6y ago
        That's 2015, densities have gotten much higher since then. I'll take back heavily corrupting, I've seen it happen but I don't know that it is the norm within 1-2 years.
- noxer 6y ago
  Its nonsense. For both SSD and HDD. Although HDD do have a tendency to fail shorty after reuse if they where not used for years. This is due to lubrication decomposing afaik.
athms 6y ago
No they don't. This myth originated when Alvin Cox (Seagate) gave a JEDEC presentation in 2015 talking about cell corruption when the drive reaches its end of life AND is stored at abnormal temperatures. Simply leaving flash unpowered won't corrupt data, especially consumer drives. This has been debunked by Alvin Cox and all the manufacturers of flash storage.

by cma 6y ago

They start heavily corrupting data if left unpowered for around a year or two though, in case this gives anyone false confidence in a use case they aren't designed for.

brokenmachine 6y ago

Do all SSDs do that? Is just powering them up every now and then enough? I mean, it's not refreshing the entire drive, is it?

londons_explore 6y ago
Yes, all SSD's suffer this effect. Just plugging them in often isn't enough to make them notice and refresh all data - the SSD doesn't have a clock in so doesn't know it's been unplugged for a long time. The real answer is "for every month an SSD is powered down, leave it powered up for a day"
- athms 6y ago
  >Yes, all SSD's suffer this effect. Wrong. Stop repeating nonsense.
  - londons_explore 6y ago
    Source for my claim: https://www.anandtech.com/show/9248/the-truth-about-ssd-data-retention https://www.anandtech.com/show/9248/the-truth-about-ssd-data...
    - athms 6y ago
      Your source doesn't support your statement. The original poster stated, "They start heavily corrupting data if left unpowered for around a year or two though, in case this gives anyone false confidence in a use case they aren't designed for." A person asked if all SSDs do that and you said, "Yes, all SSD's suffer this effect." This statement is wrong. The AnandTech article even mentions the falsehoods and states it wants to clear up the confusion. A drive must meet certain conditions before data loss begins. Simply putting a backup or thumb drive in a safe for several years isn't going to cause data loss and the AnandTech article comes to this conclusion. Here is another article from PCWorld with commentary from the authors of the 2015 JEDEC presentation that started this hysteria. https://www.pcworld.com/article/2925173/debunked-your-ssd-wont-lose-data-if-left-unplugged-after-all.html https://www.pcworld.com/article/2925173/debunked-your-ssd-wo...
    - cma 6y ago
      That's 2015, densities have gotten much higher since then. I'll take back heavily corrupting, I've seen it happen but I don't know that it is the norm within 1-2 years.
noxer 6y ago
Its nonsense. For both SSD and HDD. Although HDD do have a tendency to fail shorty after reuse if they where not used for years. This is due to lubrication decomposing afaik.

athms 6y ago

No they don't. This myth originated when Alvin Cox (Seagate) gave a JEDEC presentation in 2015 talking about cell corruption when the drive reaches its end of life AND is stored at abnormal temperatures. Simply leaving flash unpowered won't corrupt data, especially consumer drives. This has been debunked by Alvin Cox and all the manufacturers of flash storage.