Mac OS X Lion Adds TRIM Support for SSD's

iPhone1 · 10:30 AM

TRIM Support : YES!!!!!!!

ct2k7 · Feb 25, 2011, 09:01 AM

Confirmed on MBA (Late 2010)! (x 100)

Hellhammer · Feb 25, 2011, 09:04 AM

This is good news.

LoganT · Feb 25, 2011, 09:48 AM

So what is TRIM support and why is it a good thing to have?

saving107 · Feb 25, 2011, 09:59 AM

Quote:

Originally Posted by LoganT

So what is TRIM support and why is it a good thing to have?

Quote:

What’s the big deal with TRIM support? To put it simply, operating systems like Snow Leopard that don’t have TRIM support will treat solid state drives as regular, spinning drives when writing and deleting blocks of data. Snow Leopard doesn’t exactly know it’s dealing with an SSD, and while you’ll notice incredible performance improvements in daily usage, the same performances will slowly degrade over time without TRIM support. TRIM correctly tells the operating system which blocks of data are no longer in use in the solid state unit, and the OS passes the information along to the SSD controller so it can wipe blocks internally.

Basically: this is great news for SSD aficionados and, looking forward, a smart move from Apple as the move to solid state drives in all Mac computers seems inevitable.

http://www.macstories.net/news/os-x-...port-for-ssds/

Stratus Fear · Feb 25, 2011, 10:16 AM

Apparently not all SSDs. At least my OCZ Vertex 2 doesn't appear to have it enabled in Lion, although it works fine in Windows.

LoganT · Feb 25, 2011, 10:18 AM

I've also heard that TRIM is good for cheaper quality SSD drives.

iPhone1 · Feb 25, 2011, 10:32 AM

Quote:

Originally Posted by Stratus Fear

Apparently not all SSDs. At least my OCZ Vertex 2 doesn't appear to have it enabled in Lion, although it works fine in Windows.

That would suck if Apple made Lion to support TRIM only on Apple branded SSD's. Let's hope this is not the case.

Stratus Fear · Feb 25, 2011, 10:52 AM

Quote:

Originally Posted by iPhone1

That would suck if Apple made Lion to support TRIM only on Apple branded SSD's. Let's hope this is not the case.

Well if that ends up being the case, I'm sure some smart people will find a way to make it work

mrblack927 · Feb 25, 2011, 10:55 AM

Quote:

Originally Posted by Stratus Fear

Apparently not all SSDs. At least my OCZ Vertex 2 doesn't appear to have it enabled in Lion, although it works fine in Windows.

Indeed. My Intel X25-M G2 SSD is not supported either.

axu539 · Feb 25, 2011, 11:36 AM

Quote:

Originally Posted by mrblack927

Indeed. My Intel X25-M G2 SSD is not supported either.

Hmm this is very bad news. I wonder if I should order an Apple SSD with the new MBP then, and just sell my own G2. Anyone have any thoughts?

Hellhammer · Feb 25, 2011, 11:40 AM

Quote:

Originally Posted by axu539

Hmm this is very bad news. I wonder if I should order an Apple SSD with the new MBP then, and just sell my own G2. Anyone have any thoughts?

That is the first beta of Lion. TRIM support may still be taking its baby steps so don't make decisions based on what Lion currently supports.

ufkdo · Feb 25, 2011, 11:41 AM

It was one of the good news I was waiting for.

axu539 · Feb 25, 2011, 11:42 AM

Quote:

Originally Posted by Hellhammer

That is the first beta of Lion. TRIM support may still be taking its baby steps so don't make decisions based on what Lion currently supports.

Definitely definitely. However, I will cancel my order for now, since I should probably wait on some reviews anyway. I'd also like to see what SSDs they're actually using this time around.

Hellhammer · Feb 25, 2011, 11:45 AM

Quote:

Originally Posted by axu539

Definitely definitely. However, I will cancel my order for now, since I should probably wait on some reviews anyway. I'd also like to see what SSDs they're actually using this time around.

That is always a good choice. Anand is already working on review and IMO AT's reviews are one of the best in the Internet.

GekkePrutser · 12:32 PM

What I said before: Knowing that it's a shame though that Apple didn't pick TRIM-capable SSD's for the current generation MacBook Airs. There's 2 suppliers in there currently, Toshiba and Samsung but neither support TRIM, according to the System Profiler

Sorry, I stand corrected

Hellhammer · Feb 25, 2011, 12:20 PM

Quote:

Originally Posted by GekkePrutser

Knowing that it's a shame though that Apple didn't pick TRIM-capable SSD's for the current generation MacBook Airs. There's 2 suppliers in there currently, Toshiba and Samsung but neither support TRIM, according to the System Profiler

It shows no TRIM support because OS X does not support it. See above, Intel X-25M supports TRIM but in OS X the TRIM support is stated as no. The second post also says that TRIM support has been confirmed with 2010 MBAs.

luggles · Jul 21, 2011, 08:35 AM

Any new information on whether the final release of Lion, allows for Trim support on non-apple branded SSDs?

I'm holding off purchase on a Intel 320 because it doesn't have garbage collection, and unsure about TRIM enabler.

Cougarcat · Jul 21, 2011, 08:44 AM

It doesn't.

rmwebs · Jul 21, 2011, 09:28 AM

Confirmed, trim not working at all on my OCZ-Vertex2

I guess this is another one of those moments where Apple are being *******s, forcing people to buy majorly overpriced SSD's from them. Hopefully someone can come up with a way to enable this.

EDIT: Just found this

http://www.machrome.com/2011-07/enab...sd-on-lion.mac

Feb 25, 2011, 08:58 AM	#1
iPhone1 macrumors 6502a Join Date: Apr 2010 Location: San Diego, CA	Mac OS X Lion Adds TRIM Support for SSD's TRIM Support : YES!!!!!!! Attached Thumbnails __________________ Verizon iPhone 5 mid-2010 MacBook Pro 15" i7 HR-AG SSD Last edited by iPhone1; Feb 25, 2011 at 10:30 AM.
	0

Feb 25, 2011, 09:04 AM	#3
Hellhammer Demi-God (Moderator) Join Date: Dec 2008 Location: Helsinki, Finland	This is good news. __________________ SSD Editor for AnandTech You can also follow me in Twitter!
	0

Feb 25, 2011, 12:13 PM	#16
GekkePrutser macrumors 6502a Join Date: Aug 2005 Location: Ireland	What I said before: Knowing that it's a shame though that Apple didn't pick TRIM-capable SSD's for the current generation MacBook Airs. There's 2 suppliers in there currently, Toshiba and Samsung but neither support TRIM, according to the System Profiler Sorry, I stand corrected __________________ Macs: Mac Mini i5 2.5 Ghz w/Radeon GPU 16GB 2x128GB Crucial M4 SSD; MacBook Pro Retina 13", 2.5Ghz, 8GB RAM, 128GB SSD Mobile: iPhone 4 16GB, iPad (3rd gen) 32GB WiFi, iPod Shuffle 3G Last edited by GekkePrutser; Feb 25, 2011 at 12:32 PM.
	0

Jul 21, 2011, 09:28 AM	#20
rmwebs macrumors 68030 Join Date: Apr 2007 Location: North London, England	Confirmed, trim not working at all on my OCZ-Vertex2 I guess this is another one of those moments where Apple are being *****s, forcing people to buy majorly overpriced SSD's from them. Hopefully someone can come up with a way to enable this. EDIT: Just found this http://www.machrome.com/2011-07/enab...sd-on-lion.mac Attached Thumbnails __________________ Walt Disney World Guide**
	0

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Feb 25, 2011, 09:01 AM	#2
ct2k7 macrumors 601 Join Date: Aug 2008 Location: Florida / UK	Confirmed on MBA (Late 2010)! (x 100)
	0

Feb 25, 2011, 09:48 AM	#4
LoganT macrumors 68020 Join Date: Jan 2007	So what is TRIM support and why is it a good thing to have?
	0

Feb 25, 2011, 10:16 AM	#6
Stratus Fear macrumors 6502 Join Date: Jan 2008 Location: Atlanta, GA	Apparently not all SSDs. At least my OCZ Vertex 2 doesn't appear to have it enabled in Lion, although it works fine in Windows.
	0

Feb 25, 2011, 10:18 AM	#7
LoganT macrumors 68020 Join Date: Jan 2007	I've also heard that TRIM is good for cheaper quality SSD drives.
	0

Feb 25, 2011, 11:41 AM	#13
ufkdo macrumors regular Join Date: Oct 2010 Location: Turkey	It was one of the good news I was waiting for.
	0

Jul 21, 2011, 08:35 AM	#18
luggles macrumors newbie Join Date: Oct 2008	Any new information on whether the final release of Lion, allows for Trim support on non-apple branded SSDs? I'm holding off purchase on a Intel 320 because it doesn't have garbage collection, and unsure about TRIM enabler.
	0

Jul 21, 2011, 08:44 AM	#19
Cougarcat macrumors 601 Join Date: Sep 2003	It doesn't.
	0


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