Question SSD lifespan with Crystal Disk Info.

[Junglist]

My parent’s computer was purchased in 2012 with a Corsair Force 3 120GB SSD. It hasn’t given any issues so far. I’m considering how much longer it will last. I can’t find any specs on this SSD that tells me any info about lifespan or TBW. I’m not sure how to interpret everything Crystal Disk Info tells me. Does it tell me anything about how much longer the SSD will work for?

 

[USAFRet]

It will last right up until the moment it dies.

That could be a decade from now, or 5 minutes from now.

Numbers in your CDI window do not indicate any problems.

 

[hotaru.hino]

If there's anything important on the drive, have a backup plan. Otherwise just use it until it dies, whenever that'll be.

If you're worried about wearing out the flash cells, you'll probably die before then.

 

[fzabkar]

Are there any additional SMART attributes? Specifically, the health status appears to have been computed from some attribute that isn't in your screenshot.

Example:

https://www.legitreviews.com/images/reviews/1723/cdmi.jpg

 

[BFG-9000]

It's a Sandforce SF-2000 powered drive with 25nm planar MLC flash, which is generally good to 3,000 write cycles.

The reason for the "99% good" health rating is because this drive has only been through 143 write cycles. Even after 3,000 write cycles (which at your current rate of use should take 230 years) it should still work--so long as other hardware in the drive hasn't failed, it just will no longer be able to retain data for at least a year unpowered at elevated temperatures (yes, that's all write-cycle lifespan means).

So you see, you can't really interpret anything from those values as the drive isn't written to frequently enough for it to be of any use. Something is bound to just fail before the 230 years is up, and the software cannot help you determine how long until then, only if failure is imminent right now. And it's not.

 

[Lafong]

17 terabytes of writes in 12 years. Under 1.5 per year.

That's quite low. I'd guess lower than 90 percent of PC users.

Powered on only about 15 hours a week. Again lower than most.

Keep riding it.

 

[fzabkar]

The reason for the "99% good" health rating is because this drive has only been through 143 write cycles. Even after 3,000 write cycles ...

I can see how you have arrived at this figure (= host writes / SSD capacity), assuming a write amplification (WAF) of 1. However, this would mean that the remaining life, as a percentage of rated P/E cycles, would be around 95% rather than 99%. Instead, a figure of 99% would imply that the average P/E cycle count is somewhere between 30 and 60 (= 2%), but that would mean that the WAF would be somewhere between 0.2 and 0.5. I know that SandForce used data compression in their SSDs, but this result seems at the extreme end of the plausible range.

:-??

 

[Junglist]

Okay, thanks for your help. I have an external back-up just in case. It looks like the drive is in good order.

 

[Viking2121]

Crystal disk info SSD health is more of a guess than reality, unless you do have something wrong with the SSD.

Most SSD's will shrink over time as it wears, some get slow, thats normal, and by the time its to a noticeable point, you'd probably be on bigger SSD anyway or even a whole different build.

I wouldn't worry about it.