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billymukers 03-05-2019 03:26 AM

SSD Life
 
How long do SSD's usually last? I mean their life?

mark sr 03-05-2019 05:04 AM

Re: SSD Life
 
I have no idea but my oldest son put one in his pc several yrs ago and it still works fine. He put one in mine a few months ago.

Colbyt 03-05-2019 06:57 AM

Re: SSD Life
 
They are rated based upon MTTF = Mean Time To Failure and TBW = (terabytes written) values. Most of the better brands have specs like 1.5- 2.0 MTTF and 500 TBW or better.


The TBW amount can vary widely within a product line.


For the WD models the expected life is about the same or better than a hard drive.


I just put a very small one in the wife's computer which is old and slow and the boot and shutdown time are both much faster.

supers05 03-05-2019 11:56 AM

Re: SSD Life
 
As it's been said, it depends on how it's used, and the quality of the line. (brands have quality of product lines.)

The more you write to it the faster it'll start to fail. For most people, just surfing the web, doing office type work, or playing games it'll last a long time. (some expect them to last 5-10 years.) For things like video editing, it may only last just a few years. My Samsung 850 pro (1TB) has been powered on for 704 days. (according to the drive.)

(Note that the smaller drives will actually have a better life expectancy. With the way the data is packed in the newer technologies, mean time to failure is actually dropping. There's some good YouTube videos that explain it well if you're curious.)

Cheers!

ZZZZZ 03-05-2019 12:32 PM

Re: SSD Life
 
Mechanical hard drives will be officially obsolete in a couple of years, like a floppy disk drive. Sure, it may still work, but new systems won't use them.
.
.

stick\shift 03-05-2019 03:06 PM

Re: SSD Life
 
Mine was installed in January of 2013 and still working just fine.

SPS-1 03-05-2019 04:16 PM

Re: SSD Life
 
Quote:

Originally Posted by supers05 (Post 5784045)
Note that the smaller drives will actually have a better life expectancy.


That is not consistent with what I have read. SSD's have a finite limit on how many times you can write to them. They have internal firmware to evenly spread data across the range, so then doubling the size of the SSD means each spot is written to half as often.

supers05 03-05-2019 04:35 PM

Re: SSD Life
 
Quote:

Originally Posted by SPS-1 (Post 5784331)
That is not consistent with what I have read. SSD's have a finite limit on how many times you can write to them. They have internal firmware to evenly spread data across the range, so then doubling the size of the SSD means each spot is written to half as often.

The problem is the multiple data layers now. (multi-level) Each "cell" isn't just 1 bit, but is now up to 4, and soon to be more. That means each cell is often written to more often, than a single level cell. It also means that a defect in 1 cell, takes out 4 bits. (4x the damage for the same defect in a single level cell.)

There are mitigations, and the better controllers use only the first level at the beginning, and move on the the more challenging layers as required. (the more levels per cell, the slower the read/write, so this also improves performance.) Even with these mitigations, the mean time to failure and overall performance is lower on QLC Memory. Due to cost and size, TLC and QLC are more popular on larger drives. SLC for the same capacity is 4x the price. (depending on the exact manufacturing methods used.)

https://en.wikipedia.org/wiki/Multi-...ll?wprov=sfla1

You are right about now the controllers attempt to evenly wear the drive, and compensate where needed. That aspect hasn't changed.

Cheers!

Dave Sal 03-06-2019 12:57 PM

Re: SSD Life
 
I built my PC in June 2014 and chose an Intel SSD. I use the Intel SSD Toolbox program to run trim weekly. The last time I did it showed it is at 75% life remaining, so it looks like this SSD is projected to last about 16 years or so. Fingers crossed.

chiraldude 03-06-2019 02:39 PM

Re: SSD Life
 
Wear leveling is accomplished by rotating through "extra" drive space. The total capacity of a drive will always be more than the rated capacity. This extra space is rotated in and out as data is written and deleted. Also, when sectors go bad, the extra space is utilized to maintain the rated capacity.
One aspect of SSD lifespan then is how much extra capacity is included. A cheap thumb drive may only have 10% but a high quality hard drive might have 50% or more.

Deja-vue 03-08-2019 11:47 AM

Re: SSD Life
 
I have installed SSD's in Workstations since 2011, sold over a hundred in 2018 alone.
I had one single failure (Adata) in all those years. Probably built 300+ machines with SSD's.

That Guy 03-19-2019 10:13 PM

Re: SSD Life
 
My old computer has a samsung 500gb 840? SSD its atleast 6 years old and works fine.

That Guy 03-19-2019 10:15 PM

Re: SSD Life
 
If you want the best, best performance and available locally, you can pick up the samsungs from best buy, for under $100...I have a PNY 500gb ssd, my samsungs make it look slow...

SPS-1 03-28-2019 05:13 PM

Re: SSD Life
 
Dave Sal got me thinking on how I can check the health of my SSD. ADATA has a utility that is supposed to be able to check any brand of SSD. My ADATA SSD is 3 years old and its showing it has about 90% of its life remaining.


https://www.adata.com/us/ss/software-6/

Mystriss 03-28-2019 05:19 PM

Re: SSD Life
 
I bought mine October 1st 2015 - https://www.amazon.com/dp/B00KHRYRLY...ing=UTF8&psc=1

No problems at all and the SSD life test still says it's in perfect shape. Has a ten year warranty on it so I wasn't too worried. I'm confident enough that I'm planning to get the 980GB for video editing later this year.


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