Tuesday, June 27th 2017

Samsung 850 Pro SSD Reaches End of Life With 9100 TB Written

No, that isn't a major typo on this article's headline. According to print magazine c't, who conducted a test bench consisting of two pieces each of OCZ's TR150, Crucial's BX 200, Samsung's 750 Evo, Samsung's 850 Pro, SanDisk's Extreme Pro and SanDisk's Ultra II, the last SSD to actually give out the last breath was Samsung's 256 GB 850 Pro, with a staggering 9100 TB (that's 9.1 Petabytes) written. This is well beyond Samsung's suggested longevity for this particular SSD, which stands at 150 TBW.

The first particular model to give out was one of Crucial's BX 200, at 187 TBW (still more than twice over the manufacturer's 80 TBW). The second model to fail was the second Crucial BX 200, at 280 TBW. The remaining SSDs apparently died after a power peak (unclear whether a surge or a spike), save for the Pro models, in the form of SanDisk's Extreme Pro and Samsung's 850 Pro (it seems those Pro-oriented features do serve some purpose, eh?.) One of these SanDisk Extreme Pro models lasted for about 2,200 TBW, the same amount of writes the first Samsung 850 Pro model endured. However, the second Samsung 850 Pro broke through all records with its total 9,100 TB written. Naturally, these are interesting and impressive overall results, but they can't really be counted upon as being statistically significant; two models each aren't enough to achieve a representation of the tested SSD models' endurance. However, this also probably means that save a defect on your SSD's manufacturing, you can count on it for a considerable amount of writes.
Sources: Tweakers.net, Thanks @ P4-630!
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46 Comments on Samsung 850 Pro SSD Reaches End of Life With 9100 TB Written

#1
Chaitanya
That is seriously impressive.
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#2
trparky
Where did the 850 EVO stop?
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#3
W1zzard
Slightly OT, we had a Crucial BX100 die on us last week that we were hammering with TPU database load for two years. Got more of those and no-issues so far on them. Apparently SSDs can take much more than rated.
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#4
RejZoR
Holy sweet mother of all baby Jesuses. That's over 9000! (sorry, couldn't resist). I've seen 850 Pro 2TB reaching around 2 PB of writes, but 9, damn. Samsung's 3D NAND and their controllers are really impressive.
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#5
xkm1948
Do HDDs with mechanical structures have a similar write limit? With the newer Shingle Magnetic Tech is should have similar problems as well.

As for Samsung that is seriously impressive. I am saving up for a 960Pro 1TB NvME drive next.
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#6
Frick
Fishfaced Nincompoop
Well my BX200 have like 5TB written after one year, should last for awhile..
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#7
RejZoR
xkm1948 said:
Do HDDs with mechanical structures have a similar write limit? With the newer Shingle Magnetic Tech is should have similar problems as well.

As for Samsung that is seriously impressive. I am saving up for a 960Pro 1TB NvME drive next.
No. HDD's have infinite writes, assuming it doesn't have some other failure in its lifetime. SMT only means slower writes because it acts similar to NAND rewriting of cells. But has no write limitation.
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#8
qubit
Overclocked quantum bit
I've got that exact model and capacity of SSD, because I knew it was a cut above the rest and had better endurance than the rest. This result is simply staggering, so this test just vindicates my purchasing decision. :)
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#9
silentbogo
My Sandisk Extreme II barely hit 91% endurance after 3+ years of non-stop use (it only fell due to high R/W for a 240GB drive, otherwise it is perfect).
I pulled it from my system just 2 days ago to consolidate my storage (I'm barely using 200GB on my newer 512GB Sandisk X400). The old drive will probably move to my laptop.
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#10
acperience7
That is awesome, but they're still to expensive for me to make a full switch to SSD or NVME. maybe this will put some people at ease about TLC though. I love all of my TLC drives, even my 840 EVO.
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#11
dj-electric
People ask me what about my obsession with SSDs. This. All of this
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#12
EarthDog
OFN? Many sites completed endurance tests already...well known writes havent been an issue in years/ssd generations. :)
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#13
Xzibit
Zapp
According to the testers one of the systems attacked by a power surge, making the SSD with a SanDisk Extreme Pro was unusable
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#14
ssdpro
The first particular model to give out was one of Crucial's BX 200, at 187 TBW (still more than twice over the manufacturer's 80 TBW). The second model to fail was the second Crucial BX 200, at 280 TBW. The remaining SSDs apparently died after a power peak, save for the Pro models, in the form of SanDisk's Extreme Pro and Samsung's 850 Pro (it seems those Pro-oriented features do serve some purpose, eh?.)
Was that second "850 Pro" supposed to be the "750 Evo" sample? And did the TR150 suffer the same fate or is it still going?
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#15
Xzibit
Woops

C't Magazine
That left three SSDs in the race. Two were somewhat latecomers a SanDisk Extreme Pro and a Samsung SSD 850 Pro were in the same test computer, but we had at the beginning of the test given to a configuration error on the head inadvertently. After we changed out different settings, it turned out we were just forgotten to turn on the Windows-write cache. Thus wrote the two disks weeks far below their abilities and they took 'only' 2.2 petabytes. They were stopped a while to work as the other. The other SSD 850 Pro had at that time 4.5 petabytes sit, thirty times more so than the promised 150 TBW. However, the SMART values reported a rapidly approaching end were: the Used Spare Block Count that longevity counts in increments of one percent, all at 1.
I think this is the original source

C't Magazine - How long do SSDs really last? - March 17, 2017
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#16
theeldest
RejZoR said:
No. HDD's have infinite writes, assuming it doesn't have some other failure in its lifetime. SMT only means slower writes because it acts similar to NAND rewriting of cells. But has no write limitation.
Technically, the media has infinite writes but the drive does not.

HDDs are starting to be advertised with a TBW number to put them in perspective. It's mostly the warranty length x the maximum sequential write speed but it can be used the same way as a write endurance from SSDs.
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#17
rogert15
Cool, now we need for someone to repeat this at 50 deg C so we can see temperature effect on longevity with different drives MLC, TLC, it might be that manufactures rate endurance for worst case temps.
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#18
xorbe
The TPU summary should at least mention the size of the failing drives, as 128GB vs 1TB makes a difference.
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#19
gugasfreaK
I have that Samsung model the 850 Pro. I WILL SURVIVE!!!! xD
<div class="youtube-embed" data-id="tS6JJN7j-gQ"><img src="https://i.ytimg.com/vi/tS6JJN7j-gQ/hqdefault.jpg" /><div class="youtube-play"></div><a href="https://www.youtube.com/watch?v=tS6JJN7j-gQ" target="_blank" class="youtube-title"></a></div>
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#20
Kronauer
Im not even mad, that amazing xD
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#21
Tomgang
But i write 9101 tb of data every day. What to do then?

Seriously that is some impressive numbers and alot of data.

While hdd litterly failing around me (3 just this year so far. 1 external and two wd velociraptors alright those raptors where 8 years old. Aswell as other hhd failed over the years). I have yet to se an ssd fail in front of my own eyes. And i have had 5 ssd over the time where one is sold and rest is still in my owner ship.

The ssd i have now is:
And old crucial m4 64 gb. Now retired os drive and only use for games. But even this ealy ssd with over 10000 hours power on and still at 85 % exspected life span left.
Rest of my ssd is all at 100 % even after one of them is 3 years old now.
Crucial mx300 275 gb
Samsung evo 850 250 gb
Samsung 950 256 gb m.2 nvme ssd. My current os drive.

Whats more impressive me is that these ssd has been throw hell and back, with hell i mean alot os ssd benchmark.that shut where down an ssd faster.

Ssd is truly in my opinion way more stable than those slow ugly harddrives :p

Harddrive is compare to ssd suicide loving peace of crap :kookoo:.
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#22
Legacy-ZA
I am really happy with all my Samsung products, be it my SSD, Monitor, Video Memory etc, it doesn't matter, very good build quality that lasts while remaining somewhat affordable. Keep it up Samsung. :)
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#23
Readlight
80-100 euro for product who will die soon tlc 750 evo fuck you samsung give my mony back, take your shit back!
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#24
Vya Domus
I hope that with this , the myth of SSDs being fragile is going to be eradicated. Finally
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#25
Toothless
Readlight said:
80-100 euro for product who will die soon tlc 750 evo fuck you samsung give my mony back, take your shit back!
Someone has obvious issues with Sammy..
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