this post was submitted on 18 Feb 2024
426 points (98.0% liked)
Technology
59266 readers
5184 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
The lifespan of your data isn't nearly as long as the lifespan of the cells storing your data. Due to leakage of of power from the cells, and the more and more dense these cells are being packed (leading to smaller differences between what voltage maps to what binary value), SSDs have issues with bitrot. With a disk this size you would need to have data regularly checked and refreshed (rewritten) to ensure the data being stored was still correct and not corrupted.
All storage has issues with bit rot. There haven't been any studies to show that SSD is disproportionately affected.
In 2016, HDDs were more reliable (MTBF).
In 2022, for the first 5 years, SSDs are looking more reliable. With more of a constant failure rate (1%/yr), than the increasing failure rate of HDDs after 5 years.
(Caveat: not just bit rot, but general failure data.)
There's a caveat there. We've had some new tech in SSDs come out very recently, new enough not to be in those charts will still have to see.
What is bit rot?
When bits of data on a storage medium goes bad for seemingly no reason. If you've ever had a library of files and all of a sudden there's a file that won't open even though you haven't touched it.