Step by step:
Additional information on the APple site too.
I've had a pair of OCZ SSD's for about the same amount of time. The one in my wife's computer has trim enabled mine does not. I don't user her computer much but I haven't noticed a difference between the two.
That is not necessarily true. While I won't speak specifically to the OWC SSDs (though they have no technical attribute I am aware of which would explain a complete exemption from using TRIM), the value of TRIM can come to light over time due to frequent deletion without necessarily filling the hard drive.You would only really notice it if you fill up your SSD on a regular basis.
TRIM enables the garbage collection process to remove data from deleted files, reducing the amount of read/write operations involved in freeing up pages. So TRIM makes garbage collection more efficient and reduces the strain it places on the SSD in the long run. (This is an oversimplification, and there are other factors to consider between controllers, but hopefully it makes sense).Also, I'm not sure if SSD's with garbage collection need TRIM enabled? It shouldn't have any real effect, though since the controller can just ignore TRIM requests if it has some other mechanism enabled.
I've had my Crucial M4 boot drive going now for six months or so without trim, and it still gets the same speeds during tests as before I cloned my OS on it. I only use 98GB out of the 256GB available, and frequently drag large files on the desktop before relocating them to other drives, but other than that I never "fill it up" or anything.
That said, I haven't had any issues, either. Apps boot quick, nothing hangs or gets glitchy... nothing. (Knock on wood, right?) If something were to start screwing up on my M4, I'd try it then. Until then, I subscribe to "if it ain't broke, don't fix it."
Thats why I got a drive that has the sandforce chipset in it. Fixes that problem.
So the question was do you need trim?
Not does the sandforce controller that comes in most SSD's better than all the rest....
By the way just about every modern SSD has garbage collection, and sandforce based SSD's don't play all that well with Mac's. To update the firmware on OCZ, OWC and most other SF based drives require a linux distro and patience. Crucial has Mac Firmware updates..
TRIM enables the garbage collection process to remove data from deleted files, reducing the amount of read/write operations involved in freeing up pages. So TRIM makes garbage collection more efficient and reduces the strain it places on the SSD in the long run. (This is an oversimplification, and there are other factors to consider between controllers, but hopefully it makes sense).
OWC has mac firmware updates. When I did the research to buy my SSD I read several places that the OWC with sand force was the way to go on a mac.
Here is a question. What would be the effect of secure emptying trash? Doesn't that write 0s over the deleted files?