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TRIM Support Enabler
- Thread starter Cindori
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No it does not do the same thing. What this hack does it modify a next file on whatever version of the OS you have installed on the drive. So TRIM will only work from that copy of the OS. If you boot from the DVD and run DI from there the version of the OS on the DVD does not have the hack installed and TRIM is not enabled so it is not TRIM'ing the drive.
There would be no reason to secure erase before the Lion install. The idea is to do the install and afterwards TRIM the drive. At this point it appears the best way to do that is install Lion then boot into SLI and run "fsck -ffy" to TRIM unused blocks on the drive.
has anyone established that this does more than simply make the info panel for the ssd say trim is enabled?
Also, are there reports for crucial c300? Does it work for that drive?
Also, are there reports for crucial c300? Does it work for that drive?
Yes. Earlier in the thread there is a post pointing to a test using a Linux util. that proves TRIM is actually functioning.
Suggest searching this thread for C300 and you will find several discussions.
Nice, just did mine and I could swear bootup is faster. There used to be a slight pause at boot, now it's instant.
I'll test VLC see if beach ball thing happens again.
Here are my numbers, obviously limited by the 1st gen macbook... 128GB M4. Testing that same drive on my desktop PC running SATA 3 really put this to shame, I can hit almost 500MB read.
EDIT: Don't know how much stock I would put into that program, using HD Tune Pro on my 64GB Desktop drive my numbers were WAYYYYY different. AJA software on PC was like 100MB/s read/write and I'm still hitting 480MB/s on portions of HD Tune, 370MB avg (would be higher if it wasn't in use and boot drive). Might just be their PC client???
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WOW why had I not seen this thread before? thats awesome, a home made universal apple trim support Super Cool man kudos!!! 
Hey,
I'm looking to buy an SSD for use exclusively with my uMB Late 2008 and Lion. I'm looking at Vertex, Corsair, Intel 320 and C300.
Because I plan to use it only in my MacBook, I'd like to know which combination would give me the better results in performance (and compatibility): MLC+TRIM, SF alone, some specific model with SF+TRIM, etc.
Thanks
I'm looking to buy an SSD for use exclusively with my uMB Late 2008 and Lion. I'm looking at Vertex, Corsair, Intel 320 and C300.
Because I plan to use it only in my MacBook, I'd like to know which combination would give me the better results in performance (and compatibility): MLC+TRIM, SF alone, some specific model with SF+TRIM, etc.
Thanks
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Does anyone know what may be happening with my Intel 320? So, after upgrading to Lion, I noticed that uninstalling Apps does not bring the taken space back to my available space. Another weird thing is that, overtime, I'll get a few 500-1gb of space at random times. I have since installed the Trim Enabler hoping that erasing free space would relinquish the free space, but nothing has worked yet.
Sounds like the 8MB bug may be coming to bite you soon. I'd back up everything NOW.
Interesting....Well, TM has been kicking frequently (thanks Lion?) which means that I think I am covered in that department. Should I just secure erase the entire drive and restore from a backup?
You are not freeing up disk space when deleting files because of local (as in "on your hard drive", so not on the Time Machine drive!) Time Machine backups, a new feature introduced in Lion. This feature is per default activated and can, unfortunately, not be disabled in the Time Machine menu. But: you can safely disable the local backups using the following terminal command:
sudo tmutil disablelocal
Some more information about the local backups: http://toti.posterous.com/hidden-local-backups-with-mac-os-x-lion-filli
You are a freaking god. If I could, I would name my children after your username! This is freaking bizarre by the way. Not even Omni Disksweeper would pick up this damn mobile backup. Why did apple decide to tuck this away somewhere? It was eating 26gb of my storage which is a travesty to a 120gb SSD.
Do you know if the local backup gets deleted the next time you connect to you Time Machine drive?
Well, I would have expected it to work this way, but it did not. I had more than 20GB (of my 120GB SSD!) filled up with local backups that simply would not go away, even when plugging in the Time Machine drive and forcing it to backup multiple times. It just does not make any sense that it works this way, I do not know when it would have eventually freed up my disk space - if at all. So, I basically sat there, as the administrator of my computer, and could not free up disk space by deleting files. How such an annoying "feature" can be enabled per default I cannot understand, even less that there is no easily accessible option to control it.
You can by the way check how large the local backup is if you go to "About this Mac -> More info -> Storage" (as seen on the screenshot attached, with local backups disabled it shows "Zero KB"). It seems to be only active on mobile Macs.
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after following the steps at http://toti.posterous.com/hidden-loc...s-x-lion-filli
i have freed up about 40GB on a 120GB SSD.
Thanks for the link!
i have freed up about 40GB on a 120GB SSD.
Thanks for the link!
after following the steps at http://toti.posterous.com/hidden-loc...s-x-lion-filli
i have freed up about 40GB on a 120GB SSD.
Thanks for the link!
Your link goes to a 404. Here's the correct URL: http://toti.posterous.com/hidden-local-backups-with-mac-os-x-lion-filli
Changing drives
I'm new with Macs so this TRIM enabler only makes changes to the files that are on the SSD drive? So if I were to go back to the rotational hard drive that came with my Mac, I can just swap it back, correct? It will not affect the my old (non SSD) drive?
I'm new with Macs so this TRIM enabler only makes changes to the files that are on the SSD drive? So if I were to go back to the rotational hard drive that came with my Mac, I can just swap it back, correct? It will not affect the my old (non SSD) drive?
Hm, I remember this trim enabler working for me in snow leopard & even in Lion when I first started using it. I have since restored from a time macine backup (for some complicated reasons) & About my mac says that Trim support is a 'YES' but in Disk Utility I can't Free Empty Space, what gives? I've restored the driver & tried patching it again but still doesn't let me Free Empty Space, any ideas?
You cannot "Erase Empty Space" in lion on a drive you have booted from.
For instance, on my 2011 MBP, i cannot Erase Empty Space on the SSD i boot from, but my internal secondary 500GB HDD i can.
You can try booting from your SL DVD and open Disk utility from there.
As long as TRIM is enabled, you're fine, you do not need to worry about this.