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Update on Samsung SSD Reliability

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Re: Update on Samsung SSD Reliability

#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 overprice SLC out of production. If more people knew the truth of what they were trying to do, we wouldn't be in this situation.

Re: Update on Samsung SSD Reliability

#113
post #74
post #7

I have this exact model, 980 Pro 2TB. It says to update firmware, but how can you do that from Linux? The instructions are all about some Windows program. Thanks! EDIT: I'm quite happy with the warning from this article, fixed a potential future problem!

If you're on linux, you probably want to use fwupd[1]. You can check the existing version of your drive's firmware by running `fwupdmgr get-devices`. The version with the fix is 5B2QGXA7. I'm on Arch and apparently I installed the update at some point in the past. 1. https://wiki.archlinux.org/title/fwupd

Samsung is publishing some firmware but not this. (https://fwupd.org/lvfs/vendors/#samsung, https://github.com/fwupd/fwupd/issues/5477)

  $ fwupdmgr get-updates
  Devices with no available firmware updates: 
   • SSD 980 PRO 2TB  
It would be good to put some pressure on Samsung to use the Linux Vendor Firmware Service. I just opened a support ticket about it.

fwupd is at least manually adding a warning about the affected firmware. https://github.com/fwupd/fwupd/pull/5481

Re: Update on Samsung SSD Reliability

#114

Tangent: what's the cheapest 4TB+ PCIe SSD without significant known issues but with hardware encryption? The SN850x seems to have its own issues, and beyond these everything else seems so expensive.

> The SN850x seems to have its own issues Such as?

https://community.wd.com/t/sn850x-the-driver-detected-a-cont...

Re: Update on Samsung SSD Reliability

#115

Funny thing. This article prompted me to check the health of my two Samsung SSD's (a 250GB 850 EVO SATA III, and a 970 EVO Plus 1TB NVMe), which were fine. But Samsung's Magician also listed my Seagate ST2000DM008-2FR102 2TB spinny disk. It found a SMART error. I ran a performance test and looked at SMART again, and the "Hardware ECC Recovered" value went from 80 to 81, with a threshold of 64. My other software label…

Completely normal

Re: Update on Samsung SSD Reliability

#116
Is there any way to update my SSD on Windows without downloading Samsung Magician? I have the Samsung Evo across multiple systems and my Linux ones are okay but my Windows machines aren't okay unfortunately, they have the bad firmware.

Re: Update on Samsung SSD Reliability

#118
post #80
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…

Worth checking if you have any thermal issues with it. Mine failed in a similar way due to presumably a rookie mistake of forgetting to remove the thermal pad tape on the mobo.

Re: Update on Samsung SSD Reliability

#119
post #77

The real problem is OS:es that write to disk for no good reason. Windows 10 writes 100KB/s constantly. That should be illegal.

This doesn't actually matter in a practical sense. Assuming 24/7, it's 3TB a year. Which is ~1% drive endurance. Also, if you are worried about overwriting the same files over and over, it also doesn't matter. Block device addresses are not physical addresses, controller maps them to wear the drive evenly.

Except "evenly" is not a standard, or something that anyone other than the manufacturer can verify, it's hidden in the firmware so we have no idea really.

Re: Update on Samsung SSD Reliability

#120

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

While it's true that MLC is mostly dead, you might want to consider a higher capacity TLC ssd. If you double your capacity, you double the endurance since SSD endurance is in drive writes per day, and a bigger SSD will likely have a bigger SLC cache to help with the write speed.

Seems weird that only 2TBs fail then
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