6

There was a kernel bug that made TRIM lose random data. Samsung submitted a patch to the kernel. Is it applied in elementary OS? Or only new kernel versions? Do I need to update?

How can I find out whether TRIM is used on my system?

Is my 8-serie SSD just blacklisted for TRIM-operations, or does everything work as it's supposed to?

Improve this question
6
  • As far as I know TRIM should be enabled automatically during OS installation if the disk supports it. The Algolia blog reports they use 3.16.0-31 kernel and this series was also present in the first release of Freya (not sure what kernel is in the recent respin). So I think you should get the patch in some update sooner or later. What kernel do you actually use? You can find out with a command uname -a
    – jena
    Dec 23, 2015 at 10:02
  • I'm now on work PC but i recall it is 3.19.0-49 now, not sure about 49 part, 4x something anyways. Can I somehow check if TRIM is enabled?
    – tuomas-
    Dec 23, 2015 at 10:25
  • it seems the easiest way to check if trim is working on your machine is to use the command from here: askubuntu.com/questions/464306/…
    – jena
    Jan 2, 2016 at 11:25
  • if you have more partitions (e.g. separate /home partition), you can repeat that test for each partition by replacing the "/" with e.g. "/home"
    – jena
    Jan 2, 2016 at 11:26
  • 2
    Possible duplicate of How do I optimize my SSD with Trim in Freya?
    – Suici Doga
    Jan 26, 2016 at 2:14

2 Answers 2

Reset to default
2

from reading the messages on the kernel mailing list I understand that the data loss only is a problem when using the SSD in a raid0 or raid10 configuration. They have fixed the bug in the kernel, but I can't seem to find in which version the fix was released.

Improve this answer
-1

I cannot say much from the theory point of view. My knowledge of the linux kernel is quite limited, but I use elementary Freya since beta with a Samsung 840Pro and have never ever experienced any problems. Cannot guarantee it is safe, but there is at least positive evidence from my example.

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.