On systems I have seen, if you have an SSD installed that option is greyed out. It is not a good idea to run that command as it adds wear cycles to the drive.
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First Third-Party SSD With Native OS X TRIM Support Launched by Angelbird
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On systems I have seen, if you have an SSD installed that option is greyed out. It is not a good idea to run that command as it adds wear cycles to the drive.
If you need or want to force a TRIM on demand, you can always boot into single user mode, and run "fsck -fy". You'll see the output actually show "Trimming unused blocks" or along those lines.
After a serious issue I got on my custom fusion drive (absolutely crawling), which was remedied simply by enabling TRIM and then trimming, I'm now down that path that sees a massive difference between TRIM and GC. Granted, some SSDs do have good GC algorithms - but that's not the case for all of them out there.
After a serious issue I got on my custom fusion drive (absolutely crawling), which was remedied simply by enabling TRIM and then trimming, I'm now down that path that sees a massive difference between TRIM and GC. Granted, some SSDs do have good GC algorithms - but that's not the case for all of them out there.
Owc
I put an OWC 480 gig 6g Extreme in the main drive bay and a 3g 960 in the DVD slot... then I installed Yosemite. THEN I turned on the computer and almost had a stroke when it booted up in 15 seconds. This is in my 2.4 17" MBP
SO... I then put another OWC 480 gig 6g Extreme in my 2.9 13" MBP... restored from backup, and updated to Yosemite. Booted in 12 seconds.
I did nothing but plug them in. In fact I had no idea there were issues like this until I stopped in the Apple store to do some iPhone stuff and when I was backing up the guy helping me also nearly had a stroke when he saw how fast the machines booted. He then told me of the issues Macs have been having with SSD's. Imagine mine and his surprise. I'm not pitching anything, but OWC is the bee's knees.
rev
I put an OWC 480 gig 6g Extreme in the main drive bay and a 3g 960 in the DVD slot... then I installed Yosemite. THEN I turned on the computer and almost had a stroke when it booted up in 15 seconds. This is in my 2.4 17" MBP
SO... I then put another OWC 480 gig 6g Extreme in my 2.9 13" MBP... restored from backup, and updated to Yosemite. Booted in 12 seconds.
I did nothing but plug them in. In fact I had no idea there were issues like this until I stopped in the Apple store to do some iPhone stuff and when I was backing up the guy helping me also nearly had a stroke when he saw how fast the machines booted. He then told me of the issues Macs have been having with SSD's. Imagine mine and his surprise. I'm not pitching anything, but OWC is the bee's knees.
rev
How are these ssd drives now performing? I am trying to decide between an angelbird or owc ssd to install into a 2009 MacBook pro.
Just did this, it's important that Apple knows about this issue.
I urge everyone to keep telling Apple that TRIM support is essential in a modern OS.