this post was submitted on 12 Sep 2024
470 points (97.6% liked)

Technology

59441 readers
3746 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
 

My father told me he wanted to make USB flash drives of all the scanned and digitized family photos and other assorted letters and mementos. He planned to distribute them to all family members hoping that at least one set would survive. When I explained that they ought to be recipes to new media every N number of years or risk deteriorating or becoming unreadable (like a floppy disk when you have no floppy drive), he was genuinely shocked. He lost interest in the project that he’d thought was so bullet proof.

you are viewing a single comment's thread
view the rest of the comments
[–] floofloof@lemmy.ca 13 points 2 months ago* (last edited 2 months ago) (2 children)

The problem is that USB flash drives don't keep their data intact for very long when they're powered down. It lasts long enough for everyday use, but not even as long as a hard disk for archival.

[–] dgriffith@aussie.zone 8 points 2 months ago (1 children)

when they're powered down.

There's no periodic cell refresh in flash memory like there is in DRAM. When USB sticks are plugged in, all you are doing is powering up the flash chip and interface ICs.

You'd have to read a block then write it back to actually refresh the stored charges in the cells.

[–] floofloof@lemmy.ca 2 points 2 months ago

Do SSDs do that automatically in the background, or is all the data I'm not actively refreshing gradually rotting away?

[–] MrSoup@lemmy.zip 4 points 2 months ago

Oh, gotcha. Was thinking about the peripheral type support rather than its actual lifetime.