Question How to check whether external enclosure is passing TRIM command?

[Pextaxmx]

I have 2 2.5" enclosures
"Syba SY-ENC25055 USB 3.0 USB 3.0 to SATA 2.5" Hard Drive External Enclosure Case"
"Rosewill 2.5" SATA III Stylish and Screwless HDD / SSD Enclosure RX203"
and wondering if they pass the TRIM command to SSD. I have no idea what controller they are using inside.

Is there a way I can test if the command is passing through?

Thanks.

 

[RealBeast]

I have 2 2.5" enclosures
"Syba SY-ENC25055 USB 3.0 USB 3.0 to SATA 2.5" Hard Drive External Enclosure Case"
"Rosewill 2.5" SATA III Stylish and Screwless HDD / SSD Enclosure RX203"
and wondering if they pass the TRIM command to SSD. I have no idea what controller they are using inside.

Is there a way I can test if the command is passing through?

Thanks.

Which model SSD? Many have software on the manufacturer page that allow a manual TRIM and you can try that to see if it indicates that it runs.

 

[Pextaxmx]

It's old Samsung SM843T enterprise 480Gb... not sure if there is such tool for this drive

 

[fzabkar]

UNMAP is the analogue of the TRIM command for USB connected storage devices.