Can I enable trim on raid 0 ssds?

SDAVE · Dec 26, 2012, 05:52 AM

See title

saulinpa · Dec 26, 2012, 02:01 PM

Yes, if software RAID then TRIM can work.

SDAVE · Dec 26, 2012, 05:45 PM

Quote:

Originally Posted by saulinpa

Yes, if software RAID then TRIM can work.

Thanks! I was reading conflicting statements here on the forum. It is a software raid.

Is it safe to turn it on right now? They are 2x80GB Intel X-25M (Kind of oldish, but they're super fast). So far the speeds haven't dropped off and was wondering if even trim is worth it.

saulinpa · Dec 26, 2012, 11:09 PM

One thing I've tried as a compromise is to boot to a 10.8 disk that has TRIM enabled and then do a Disk Utility repair on the SSDs. That "trims" unused blocks. Figure that would work since Intel's PC software for XP defaults to once a week for those old disks.

SDAVE · Dec 26, 2012, 11:48 PM

Quote:

Originally Posted by saulinpa

One thing I've tried as a compromise is to boot to a 10.8 disk that has TRIM enabled and then do a Disk Utility repair on the SSDs. That "trims" unused blocks. Figure that would work since Intel's PC software for XP defaults to once a week for those old disks.

Cheers.

Just enabled Trim via Trim Enabler, and both SSD's show as it being enabled.

So far so good! Really happy with this upgrade.

I plan to get a single SSD when prices drop, probably a 256GB.

Dec 26, 2012, 05:52 AM	#1
SDAVE macrumors 68020 Join Date: Jun 2007 Location: Nowhere	Can I enable trim on raid 0 ssds? See title __________________ iPhone 5, MacBook Pro (2011), Mac Pro 2008, Apple Cinema Display 30" Aluminium
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Dec 26, 2012, 02:01 PM	#2
saulinpa macrumors regular Join Date: Jun 2008	Yes, if software RAID then TRIM can work.
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Dec 26, 2012, 11:09 PM	#4
saulinpa macrumors regular Join Date: Jun 2008	One thing I've tried as a compromise is to boot to a 10.8 disk that has TRIM enabled and then do a Disk Utility repair on the SSDs. That "trims" unused blocks. Figure that would work since Intel's PC software for XP defaults to once a week for those old disks.
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