Samsung 840 Pro,850 Pro and 3 othes have a TRIM bug that randomly deletes data

[rcarlos243]

https://blog.algolia.com/when-solid-state-drives-are-not-that-solid/

 

The system was issuing a TRIM to erase empty blocks, the command got misinterpreted by the drive and the controller erased blocks it was not supposed to. Therefore our files ended-up with 512 bytes of zeroes, files smaller than 512 bytes were completely zeroed. When we were lucky enough, the misbehaving TRIM hit the super-block of the filesystem and caused a corruption. After disabling the TRIM, the live big files were no longer corrupted but the small files that were once mapped to the memory and never changed since then had two states – correct content in the memory and corrupted one on the drive. Running a check on the files found nothing because they were never fetched again from the drive and just silently read from the memory. Massive reboot of servers came into play to restore the data consistency but after many weeks of hunting a ghost we came to the end.

As a result, we informed our server provider about the affected SSDs and they informed the manufacturer. Our new deployments were switched to different SSD drives and we don’t recommend anyone to use any SSD that is anyhow mentioned in a bad way by the Linux kernel. Also be careful, even when you don’t enable the TRIM explicitly, at least since Ubuntu 14.04 the explicit FSTRIM runs in a cron once per week on all partitions – the freeze of your storage for a couple of seconds will be your smallest problem.

 

Broken SSDs:

• SAMSUNG MZ7WD480HCGM-00003
• SAMSUNG MZ7GE480HMHP-00003
• SAMSUNG MZ7GE240HMGR-00003
• Samsung SSD 840 PRO Series
  recently blacklisted for 8-series blacklist
• Samsung SSD 850 PRO 512GB
  recently blacklisted as 850 Pro and later in 8-series blacklist

Working SSDs:

• Intel S3500
• Intel S3700
• Intel S3710

 

 

Looks like Windows is not affected by the bug.

[79 Potatoes]

This is a crucial moment

[Bittenfleax]

This is a crucial moment

Well done  :mellow:  :lol:

[Real_PhillBert]

Finally a Samsung SSD problem that my 840 Evo doesn't have! 

[qwertywarrior]

each time i hear more about these issues each time i get happier that i bought an 830

[FakezZ]

This is a crucial moment

You can say they have A DATA problem.

[Raudi_]

Finally a Samsung SSD problem that my 840 Evo doesn't have! 

 

each time i hear more about these issues each time i get happier that i bought an 830

Unless you run Linux you won't even have a risk with this issue.

[MageTank]

Finally a Samsung SSD problem that my 840 Evo doesn't have! 

I have both the 850 pro (120gb) and a few 250gb 850 Evo's running Xen on a few debian servers with TRIM support working fine, and absolutely no issues like what this article is having. While samsung might be to blame, i still think something funky is going on at a kernel level for them to be having this kind of issue. If it is infact Samsung's fault, a simple firmware upgrade would fix it.

 

I also question if the article writer had NCQ enabled, as NCQ is known to cause certain controllers to go bonkers at random. There was an entire list of drives affected by NCQ, i just can't remember where it is. 

[Mattrixx]

So according to your Intel, Intel is the way to go.

[RH00D]

Maybe should put Linux in the title. I was worried for a moment until I read that it only affects Linux!

[DEDRICK]

Click bait title is real, only like 3 people use Linux anyways

[79 Potatoes]

So according to your Intel, Intel is the way to go.

So Intel will Transcend

[Mattrixx]

So Intel will Transcend

Oh snap! Wonder if anyone was HyperX enough to get an 840 PRO back when they were big. New Kingston of the hill now for reliability?

 

I'm really grasping at straws here lol.

[79 Potatoes]

Oh snap! Wonder if anyone was HyperX enough to get an 840 PRO back when they were big. New Kingston of the hill now for reliability?

 

I'm really grasping at straws here lol.

You're a tough Corsair, but lets hope this situation doesn't get too Intenso

[zacRupnow]

Finally a Samsung SSD problem that my 840 Evo doesn't have! 

Mine can't get any more problems... it died from the algorithm bug.

[Real_PhillBert]

Mine can't get any more problems... it died from the algorithm bug.

 

Mine is still chugging along but I think I have done two firmware updates to it now.

[Trik'Stari]

......the new computer I just built for my mom has an 850 pro, and I'm running an 840 pro.

 

WHAT DO I NEED TO DO ABOUT THIS?!

 

Edit: Oh thank god, it's not a windows issue.

[zacRupnow]

Mine is still chugging along but I think I have done two firmware updates to it now.

The firmware fix would never go to the next step for me, just restarting and installing the same new firmware but not going to the next part in an endless cycle.

[Bouzoo]

The puns here...

 

[TAK]

.

[DEDRICK]

_snip_

 

[Thony]

Hold on !

Are you telling me that Pro series has a bug and 840 evo doesn't ?????

[TAK]

.

[patrickjp93]

Click bait title is real, only like 3 people use Linux anyways

>.<

Linux is a great, lightweight OS that is perfect for web browsing and basic office productivity. It's also a much more preferred programming environment compared to Windows. And this bug will be fixed by the Linux community very quickly I assure you.

[patrickjp93]

-snip-

Been there, done that.