Samsung 850 EVO SSD stil considered Bad For Linux?

[Nutria]

Hi,

I've read many articles about the cruddy firmware on these drives and how lack of queued TRIM impacts performance, but they're (relatively) old.

So, are Samsung SSDs still on the no-buy list, or have things improved since then?

Thanks.

[Bucky Ball]

I plopped one in my laptop about a year ago and it's ticking along just fine so I would heartily recommend one.

[oldfred]

I have an older 128GB Samsung SSD 840, but run my own trim script as was suggested before Ubuntu added its own automatic trim. I turn off Ubuntu's weekly and just use the daily one I created.

http://www.webupd8.org/2013/01/enabl...te-drives.html

[QIII]

I haven't looked lately, but I know queued trim instructions needed to be blacklisted by the kernel for 850s. I don't know if the kernel developers were contrite enough to apologize in public when it was found that the kernel and not Samsung was at fault. Samsung forwarded a patch. Don't know if it was applied. Don't care much at this point since both my 840 and my 850 work just fine in 16.04.

[Dennis N]

I have an EVO 850. Got a great price in Black Friday sale last year. I think the trim runs once a week? I never worry about it and it seems as fast as ever. Very pleased. Don't know what "queued trim" means, however.

[oldfred]

I did not know queued trim either:

See short comings:
https://en.wikipedia.org/wiki/Trim_(computing)

[j ferguson]

I have the 850 500 gig. I have windows 10 on one partition and am running 16.04 on the other. I use 16.04 for almost everything except a CNC design app which only runs on 10, and a couple of other things. I replaced an Intel 250 gig SSD. I've had same problem with both.

If i bounce around a lot among folders, pretty soon the access times get quite long. the cure is a reboot. lately the Samsung takes about 5 minutes to load the desktop. i can get at applications like Chrome almost immediately but not the files using the desktop. I can open a terminal and get at them. I created an additional user and desktop (metacity in both cases) works fine.

I never had this problem with hard disks. I'm looking at maybe over provisioning. maybe that will make the problem go away.

I have complete system backed up to a hard drive.

really strange, though.

john

[Kris_M]

I have an older 128GB Samsung SSD 840, but run my own trim script as was suggested before Ubuntu added its own automatic trim. I turn off Ubuntu's weekly and just use the daily one I created.

http://www.webupd8.org/2013/01/enabl...te-drives.html

Thanks @oldfred for that link!!!! I had never trimmed the Ubuntu partition so did a
sudo fstrim -v /
and will do that once every 6 months or so.


For others:
I have used SSDs for a long time on my machines - always Samsung, EVO when they came out. I had trimmed every year or so on the windows partitions.