91–100 of 341 posts
Quick note to not store any valuable data on a single drive. And when you store it on two drives, don't use the same kind of drive. (Speaking from bitter experience using spinning drives in servers that had a firmware bug where they all died at the time number of seconds of power-on time).
Furthermore, replication isn't a backup.
One key point about retention which is not often mentioned, and indeed neither does this article, is that retention is inversely proportional to program/erase cycles and decreases exponentially with increasing temperature. Hence why retention specs are usually X amount of time after Y cycles at Z temperature. Even a QLC SSD that has only been written to once, and kept in a freezer at -40, may hold data for several de…
Um. Backups seem like exactly why I might have data on an unpowered SSD.
I use HDDs right now because they're cheaper, but that might not be true some day. Also, I would expect someone less technically inclined than I am to just use whatever they have lying around, which may well be an SSD.
Flash is programmed by increasing the probability that electrons will tunnel onto the floating gate and erased by increasing the probability they will tunnel back off. Those probabilities are never zero. Multiply that by time and the number of cells, and the probability you don’t end up with bit errors gets quite low. The difference between slc and mlc is just that mlc has four different program voltages instead of t…
I do wonder why there’s no way to operate qlc as if it were mlc, other than the manufacturer not wanting to allow it. There is a way to turn QLC into SLC: https://news.ycombinator.com/item?id=40405578
How many people have a device that they may only power up ever few years, like on vacation. In fact, I have a device that I've only used on rare occasions these days (an arcade machine) that now I suspect I'll have to reinstall since It's been 2 or 3 years since I've last used it.
This is a pretty big deal that they don't put on the box.
This article just seems to link to a series of other xda articles with no primary source. I wouldn't ever trust any single piece of hardware to store my data forever but this feels like clickbait- At one point they even state "...but you shouldn't really worry about it..."
One key point about retention which is not often mentioned, and indeed neither does this article, is that retention is inversely proportional to program/erase cycles and decreases exponentially with increasing temperature. Hence why retention specs are usually X amount of time after Y cycles at Z temperature. Even a QLC SSD that has only been written to once, and kept in a freezer at -40, may hold data for several de…
I also seem to remember reading retention is proportional to temperature at time of write. Ie, best case scenario = write data when drive is hot, and store in freezer. Would be happy if someone can confirm or deny this.
One key point about retention which is not often mentioned, and indeed neither does this article, is that retention is inversely proportional to program/erase cycles and decreases exponentially with increasing temperature. Hence why retention specs are usually X amount of time after Y cycles at Z temperature. Even a QLC SSD that has only been written to once, and kept in a freezer at -40, may hold data for several de…
So literally put your data in cold storage.