Trim on USB3 attached SSD

Does anybody know whether Trim would work on an USB3 attached SSD?

Punkster said:

Hey, Wolfgang, how do you have it attached to the USB3? some kind of adapter?

This is what i've found (USB3 SSD)

128GB OCZ Enyo USB3.0 Portable SSD Solid State Disk

Right, it is a USB3 enclosure.

whs said:

Does anybody know whether Trim would work on an USB3 attached SSD?

Hi whs - USB 3.0 and SATA are both "serial data" protocols although they are electrically quite different (SATA = "Serial Advanced Technology Attachment"). So I believe they would both be transferring the same commands and data.

My guess is it will work just fine. Pretty sure about that. :):):)

thehappyman said:

whs said:

Does anybody know whether Trim would work on an USB3 attached SSD?

Hi whs - USB 3.0 and SATA are both "serial data" protocols although they are electrically quite different (SATA = "Serial Advanced Technology Attachment"). So I believe they would both be transferring the same commands and data.

My guess is it will work just fine. Pretty sure about that. :):):)

happyman, Thanks for the answer. I was contemplating to put a SSD into my external USB3 enclosure - mainly as workspace for video editing. But if the thing got "clogged", it would not be worth it.

James Colbert said:

I'd be interested in hearing how this turns out. Will SSD on a USB connection be any faster or more responsive than a mechanical drive? Will it have trim problems (a possibility you have anticipated), will there be any issues? All interesting questions. Let us know, if you don't mind.

Thanks,
James

James, these are all intersting questions. I hope my finance minister approves the expense for the "experiment" - she wants to buy more crafting supplies. Can a SSD compete against that?

I was looking at this one. At least it does not cost a fortune. Before I bought Vertex and Intel, but they are more expensive. But the Agility has good specs.

I know that OCZ SSD's have what they call Garbage Collection which does the same job as Trim. It keeps a log of "dirty" pages and zeros them when idle. On SATA interface Trim only works with ACHI mode and not IDE mode. Don't have a clue if it works on USB or not. More research is needed.

Jim