Based on CrystalDiskInfo - how can I tell how long my (830 - 256GB) SSD should last?

[nine9s]

My write amplification seems high (around 9x)?

I have had this drive as my main drive for ~2.5 years.

Only thing of high data use that I know I do is a refresh about a 25-30GB image 3 or 4 times a years.

Based on the above, should I be good for many more years?

 

[dave_the_nerd]

You don't need to worry about NAND wear until your wear leveling count hits 4 digits.

So, however long you've been using the drive, 5 times that is how much longer you have. Roughly.

 

[nine9s]

You don't need to worry about NAND wear until your wear leveling count hits 4 digits.

So, however long you've been using the drive, 5 times that is how much longer you have. Roughly.

Thanks.

What about write amplification?

From the above, mine is: 158 * 256 / 4473 = 9X right?

Is that a concern?

 

[Cerb]

The 830 should be rated for 5000 writes.

So, you've used 3.16% of its rated life in 2.5 years, for 1.26%/yr, for about 77 more years before it reaches the NAND's spec, much less wears out.

So, even if the WA is high (probably is, with an 830), your great great grandchildren won't know what this odd electronic relic is when they find it, well before the flash gets worn out 🙂.

Refreshing some images will not create high WA. Logs, browser caches, document editing, lock files, small database edits, and such things as that tend to. Plus, like the 470 before it, Samsung put quality NAND in the 830, and let the controller beat the crap out of it. They didn't get down to WA others were getting until the 840 series. Large sequential writes generally have the lowest WA, while small writes the highest.

 

[hhhd1]

I think the 830 is rated for 3000 write cycles only, which the OP only used 158 from those 3000.

I am not sure whether it was 3000 or 5000, but I think it was 3000, Intel 5xx series had the 5000.

 

[dave_the_nerd]

Thanks.

What about write amplification?

From the above, mine is: 158 * 256 / 4473 = 9X right?

Is that a concern?

It's high, but it's not a concern. You can think of WA as the ratio of "junk" to "real" data that's written. There's always going to be some junk, and different use patterns will create more or less. But as long as you're not on track to wear out your drive at an abnormally fast pace (you're not) then no worries.

 

[Cerb]

I can't actually find a rating for the 830, now. If 3k, that comes out to roughly 45 years. So, maybe just the OP's grandchildren 🙂.

 

[Topweasel]

That wear leveling count is backwards from 100 right? So basically saying you have only used up 5% of it's life expectancy. That right there should tell you all you need to know about the longevity of the drive.

So that's 2% of powered on hours, 3% of power on attempts, and 5% of actual writes. So all in all about 19 times the amount of time you have already used the drive.

 

[Emulex]

the samsung 830's I have in raid-1 are well over 3X the factory rated wear usage with near zero re-allocated sectors! they are a hoss of a drive! just keep feeding it power consistently and it will last forever!