I’m using the usb 3.0 to sata docking station - the kind that lays flat - with a Samsung 850 EVO 250GB ssd. I’m using it with a linux OS - Ubuntu Server 14.0.4.
Basically the fstrim command won’t work through the interface, so I have no way to trim the drive periodically. Also, the disk tools won’t work through the interface either - smartctl reports: unsupported usb bridge.
I saw a report that another brand of usb to stat adapter was working with a firmware update. Oddly the update they referred to was a plugable firmware, but on a different brand of hardware. smartmontools reported that firmware version 2580 worked. But I couldn’t find that listed on the plugable web site anywhere.
I tried downloading the firmware update tool but couldn’t figure out what firmware I had. I didn’t want to update unless the firmware was actually newer than I already had. I just bought the unit on Amazon 2 days ago. model = USB3-SATA0UASP1. Serial number = 1094002328895.
Anyone know of a solution? Running trim periodically is pretty important.
Tested a bit with fstrim and am getting an “ioctl failed” error when doing so. Doing a bit of research, there are people reporting that a Linux bug is preventing TRIM from functioning on USB attached SSDs.
The bug report states that “TRIM is still (currently) not possible for unknown reason, might be the usb-storage kernel module issue I guess.” - so it seems like it’s on their radar but this but unresolved for the time being.