Troubleshoot TRIM Fail

kajensen · 06-07-2014, 08:20 PM

1. Hardware. Samsung SSD UM410 Series. ATA. BIOS: AHCI not enabled (doesn't exist) because mb is ATA and AHCI is an SATA interface. This is a 5 year old 8 GB ssd, one of the earliest ones, never been TRIM'd. When I do:

Code:

 sudo hdparm -I /dev/sda

I see no mention made of TRIM under capabilities/features. I do see Mandatory FLUSH_CACHE. Could this be an automated TRIM-like function?

2. Samsung website states that TRIM is supported in all ssd's.
3. ext4 file system and latest kernal (14.04)
4. After

Code:

 sudo gedit /etc/fstab

my edit looks like:

Code:

 UUID=35921f6f-4508-4678-87ae-16bf1c993244 /               ext4 noatime,nodiratime,discard,errors=remount-ro 0       1

Somebody said that the "discard" flag should be "allow-discards" The result of this edit was kernel panic and I had to re-edit fstab with nano from recovery.
5. After I run:

Code:

 sudo fstrim -v /

I get:

Code:

 FITRIM ioctl failed: Operation not supported.

I'm stuck. Suggestions?

dijetlo · 06-08-2014, 10:59 AM

Did you update your hardware driver?
I only ask because your referencing functionality that you expect the hardware to provide and the hardware is failing to do so. In that situation, I always start with the hardware drivers.

kajensen · 06-13-2014, 03:06 PM

Quote:

Originally Posted by dijetlo

Did you update your hardware driver?
I only ask because your referencing functionality that you expect the hardware to provide and the hardware is failing to do so. In that situation, I always start with the hardware drivers.

Thanks for mentioning this. I investigated. It appears that samsung.com no longer supports my drive. They don't even have a legacy section. Samsung is all about the $$.

I found out that drivers are either internal to the kernel or external and proprietary. A driver search from Ubuntu did not find anything.

I found my firmware version via CLI but could not find any update.

I'm going to forget about this five year old Samsung ssd. For my next Linux Box,I have chosen thinkpenguin.com Both crucial.com and ADATA have limited support for Linux. Updating firmware is possible . . .

Thanks for mentioning the obvious which I overlooked!!