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Update on Samsung SSD Reliability

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Re: Update on Samsung SSD Reliability

#181

Post by morjom »

EarthLaunch wrote: post #65
smiley1437 wrote: post #20

I've been trying to find a decent endurance NVME in the m.2 form factor for write-heavy applications and it appears that true 2-bit MLC has all but disappeared, replaced by 3-bit TLC and higher (with commensurate loss of endurance) The high endurance SSDs appear to be only available in u.2\u.3\hhhl and god-help-me EDSFF form factors Any suggestions? Micron's 7450 isn't readily available

They don't really make them anymore, but you can still get m.2 form factor Intel Optane SSDs in the 900/905P series, example[0]. They have insane endurance specs. Their performance is also still awesome, especially for random reads/writes[1]. I wish they had continued making them. Most PC builders just bought crappy Samsung SSDs this whole time, ignoring these awesome (and high priced) drives. > Life Expectancy 1.6 m…

Isn't userbenchmark the site that had them artificially giving Intel/nvidia better scores on GPU and CPU metrics?

Re: Update on Samsung SSD Reliability

#182

Post by ChuckNorris89 »

scns wrote: post #178
post-it wrote: post #100

Earlier quoted context omitted.

Is it possible that your motherboard or PSU is killing the drives? Could also just be sheer chance, of course.

How does this happen? Got any background info?

Poor voltage regulation from the motherboard or power supply could glitch the controller of the drive causing I/O errors or failures.

Re: Update on Samsung SSD Reliability

#183

Post by sebazzz »

SSDs are complex beasts :-)

I've had an OCZ SSD in the past that also became read-only, in the sense that all changes after shutting down the computer were gone.

If you rebooted everything was fine, but as soon as the computer was shut down and the SSD also ran out of power, it converted to the state before turning on the computer. That was so bizarre. Once I had a hefty Windows upgrade installed and it was gone after the reboot - as if I had never installed it. It also took me a while to realize it because first of course you start to doubt your own memory, you don't realize that the sector- mapping on the SSD has suddenly become read-only

OCZ eventually solved this via an RMA and eventually OCZ also went upside down. The Time Warp bug it was called I think.

Re: Update on Samsung SSD Reliability

#185

Post by branko_d »

jamhan wrote: post #80
mgdlbp wrote: post #54

Apparently a few months ago it became known on the Chinese internet that the 980 Pro, 970 Evo Plus with new controller, and OEM versions are prone to getting unreadable sectors, where SMART 'Media and Data Integrity Errors' increases on every read attempt. https://www.reddit.com/r/buildapc/comments/x82mwe/samsung_ss... https://www.reddit.com/r/DataHoarder/comments/x8arle/psa_sam... How I came across this: Ran into th…

My anecdata: tl;dr: All 3 of my Samsung M.2 NVMe SSDs have failed in less than 3 years. 100% failure rate. My first SSD was a 1TB Samsung 970 EVO. It failed after 2 years and 8 months. It was replaced under warranty with a 1TB 970 EVO Plus. That replacement has now also failed after 1 year and 9 months. I bought a 2nd 1TB 970 EVO Plus in May 2019. It has now also failed (2 years and 7 months). Both are expected to be…

I can second EVO 850 SATA. Mine has been rock-solid since 2015.

Re: Update on Samsung SSD Reliability

#186

Post by kasabali »

Havoc wrote: post #109
walrus01 wrote: post #46

I wish more independent review organizations would conduct destructive "write lifespan until ultimate failure" real world tests on SSDs. With a mixture of real world large contiguous files and small random writes. Real ultimate write lifespan on 3-level-cell and QLC consumer grade SSDs varies wildly for things of the same capacity and similar price. Such as this series of tests from 7 years ago: https://techreport.co…

>destructive "write lifespan until ultimate failure" real world tests on SSDs >from 7 years ago It's from 7 years back for good reason. They stopped doing those tests when it became impractical as endurance increased. The drives are now good enough that you can't wear them out fast enough to make sense in a review setting ...unless fundamentally broken like these

> it became impractical as endurance increased

[citation needed]

Re: Update on Samsung SSD Reliability

#187

Post by renonce »

wahern wrote: post #138
userbinator wrote: post #111

For the same price, you can get twice the space for 1/4 the endurance, thrice the space for 1/8th the endurance, and now four times the space for 1/16th the endurance. Most people don't realise that is a horrible tradeoff, because NAND flash marketing and terminology like "TLC" or "QLC" is intentionally deceptive and manufacturers have been very secretive about the true endurance specifications, as well as trying to…

> as well as trying to overprice SLC out of production. Is it even possible to buy SLC drives any more? For the past 5+ years the only outlet I've been able to find that even advertise SLC is https://www.delkin.com/ , and you need to speak to sales to even get a price. I just assumed they and any other similar suppliers bought giant lots of chips at the tail end of SLC production and jack up the price on every new or…

Many TLC drives have SLC cache so if you limit usage of the drive you may effectively use it in SLC-only mode. This does not say anything about its endurance however. If you want endurance, better mirror your data to HDD.

Re: Update on Samsung SSD Reliability

#188

Post by wtallis »

renonce wrote: post #187
wahern wrote: post #138

Earlier quoted context omitted.

> as well as trying to overprice SLC out of production. Is it even possible to buy SLC drives any more? For the past 5+ years the only outlet I've been able to find that even advertise SLC is https://www.delkin.com/ , and you need to speak to sales to even get a price. I just assumed they and any other similar suppliers bought giant lots of chips at the tail end of SLC production and jack up the price on every new or…

Many TLC drives have SLC cache so if you limit usage of the drive you may effectively use it in SLC-only mode. This does not say anything about its endurance however. If you want endurance, better mirror your data to HDD.

If you want to use a drive as pure SLC, you're probably better off buying a QLC drive than a TLC drive. QLC drives are more reliant on SLC caching and tend to be more reluctant to migrate data from SLC to QLC when it isn't absolutely necessary.

Re: Update on Samsung SSD Reliability

#189

Post by beebeepka »

EarthLaunch wrote: post #65
smiley1437 wrote: post #20

I've been trying to find a decent endurance NVME in the m.2 form factor for write-heavy applications and it appears that true 2-bit MLC has all but disappeared, replaced by 3-bit TLC and higher (with commensurate loss of endurance) The high endurance SSDs appear to be only available in u.2\u.3\hhhl and god-help-me EDSFF form factors Any suggestions? Micron's 7450 isn't readily available

They don't really make them anymore, but you can still get m.2 form factor Intel Optane SSDs in the 900/905P series, example[0]. They have insane endurance specs. Their performance is also still awesome, especially for random reads/writes[1]. I wish they had continued making them. Most PC builders just bought crappy Samsung SSDs this whole time, ignoring these awesome (and high priced) drives. > Life Expectancy 1.6 m…

> Most PC builders just bought crappy Samsung SSDs this whole time, ignoring these awesome (and high priced) drives.

Ha, you can't blame the consumer.

Great tech but expensive and locked to intel. Nobody was going back to the blue evil just because they had a really random reads and writes for the enterprise market.

Re: Update on Samsung SSD Reliability

#190

Post by beebeepka »

morjom wrote: post #181
EarthLaunch wrote: post #65

Earlier quoted context omitted.

They don't really make them anymore, but you can still get m.2 form factor Intel Optane SSDs in the 900/905P series, example[0]. They have insane endurance specs. Their performance is also still awesome, especially for random reads/writes[1]. I wish they had continued making them. Most PC builders just bought crappy Samsung SSDs this whole time, ignoring these awesome (and high priced) drives. > Life Expectancy 1.6 m…

Isn't userbenchmark the site that had them artificially giving Intel/nvidia better scores on GPU and CPU metrics?

Same one. Assume malice, cluelessness, or both when someone cites "scores" from that place
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