Yosemite kills third-party SSD support
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Re: Yosemite kills third-party SSD support
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Last edited by ohigetbywithalittlehelpfrommyfriends on Mon Jan 12, 2015 1:14 am, edited 1 time in total.
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Re: Yosemite kills third-party SSD support
a bit clickbaity, that headline... should have added the bold bit above in the headline too.Summary: If you are running a Mac that uses a third-party SSD with TRIM enabled...
isn't this is about making Trim Enabler software devs getting their kexts signed, for security & stability reasons? apple have typically gone about it in a shitty way, but it does seem to make sense - enabling Trim on my new Crucial SSD last week caused all sorts of glitchy oddness, so i'm not exactly sure whether the so-called benefits of Trim are worth it.
is there a definitive answer to the TRIM OR NOT question? it seems that most modern SSDs have their own garbage collection systems built-in anyway, so TRIM looks to be unnecessary... ?
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Re: Yosemite kills third-party SSD support
I don't really care as long as i don't need to mess around...
"The big takeaway here is that if you are running a third-party SSD as a boot drive, and you do have TRIM enabled, then you need to take steps before upgrading to Yosemite to make sure that your drive will continue to be accessible after the upgrade."
"The big takeaway here is that if you are running a third-party SSD as a boot drive, and you do have TRIM enabled, then you need to take steps before upgrading to Yosemite to make sure that your drive will continue to be accessible after the upgrade."
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Re: Yosemite kills third-party SSD support
they haven't 'killed' third-party SSD support, they never officially supported TRIM on third-party SSDs.
the TRIM enabler devs should have seen this coming when kext signing was introduced.
the TRIM enabler devs should have seen this coming when kext signing was introduced.
Re: Yosemite kills third-party SSD support
I think I just heard my little WD Passport disk spinning delightfully to the news.
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Re: Yosemite kills third-party SSD support
[Apple Data Disaster]
External HD Disaster - 2013
SSD Disaster - 2014
External HD Disaster - 2013
SSD Disaster - 2014
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Re: Yosemite kills third-party SSD support
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Last edited by ohigetbywithalittlehelpfrommyfriends on Mon Jan 12, 2015 1:19 am, edited 1 time in total.
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Re: Yosemite kills third-party SSD support
OWC Mercury SSDs which are third party does not need Trim. They are among the best SSDs too. I knew about Trim since SSDs first arrived and always asked if people knew about this little detail when they got their "low-priced" SSDs. Few had an idea. About half got OWC at my advice.fishmonkey wrote:they haven't 'killed' third-party SSD support, they never officially supported TRIM on third-party SSDs.
the TRIM enabler devs should have seen this coming when kext signing was introduced.
Last edited by Stromkraft on Wed Dec 03, 2014 7:41 am, edited 1 time in total.
Make some music!
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Re: Yosemite kills third-party SSD support
From the comments bellow the article:
Chicken Little "journalist" thinks the sky is falling because one company can't get their act together.This is completely the fault of the suppliers of Trim Enabler.
And had they checked out their software and assumptions during the Yosemite Beta Period, they could have warned their customers and better yet, provided a solution.
I'm writing this on a Mac running Yosemite, booted of a Fusion drive built using a 3rd party SSD.
Works just fine.
Glad I didn't waste my time on Trim Enabler.
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Re: Yosemite kills third-party SSD support
the situation isn't as clear cut as OWC makes out.Stromkraft wrote:OWC Mercury SSDs which are third party does not need Trim. They are among the best SSDs too. I knew about Trim since SSDs first arrived and always asked if people though about this little detail when they got their "low-priced" SSDs. Few had an idea. About half got OWC at my advice.fishmonkey wrote:they haven't 'killed' third-party SSD support, they never officially supported TRIM on third-party SSDs.
the TRIM enabler devs should have seen this coming when kext signing was introduced.
OWC SSDs use Sandforce controllers, and one of the reasons OWC recommended against enabling TRIM was because an earlier version of the Sandforce firmware had a TRIM-related bug.
TRIM doesn't tend to help Sandforce controllers much as they rely on automatically compressing and decompressing data going to/from the drive, and hence use different garbage collection algorithms. the downside of this is that Sandforce-based SSDs tend to be slower with incompressible data. btw, Sandforce themselves actually recommend using TRIM.
the reliance on TRIM is definitely worth thinking about though, also because TRIM is only a SATA command. so if you are using an SSD over a PCIe, USB, Firewire, or Thunderbolt connection (e.g. in an external enclosure), then you don't have TRIM available either...
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Re: Yosemite kills third-party SSD support
After 3 years there doesn't seem to be a slowdown at all on OWC 256gb, so I'd say that is as clear cut as one could ask (20% free minimum as with all storage). I'm not sure about the smaller ones. Bigger is faster typically. I'm planning to get a 1TB SSD this winter.fishmonkey wrote:Stromkraft wrote:
the situation isn't as clear cut as OWC makes out.
OWC SSDs use Sandforce controllers, and one of the reasons OWC recommended against enabling TRIM was because an earlier version of the Sandforce firmware had a TRIM-related bug.
TRIM doesn't tend to help Sandforce controllers much as they rely on automatically compressing and decompressing data going to/from the drive, and hence use different garbage collection algorithms. the downside of this is that Sandforce-based SSDs tend to be slower with incompressible data. btw, Sandforce themselves actually recommend using TRIM.
Make some music!
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Re: Yosemite kills third-party SSD support
you don't get that consistent performance for nothing though. if you run the Black Magic DiskSpeedTest on your drive, you will see what i mean about incompressible data being slower (that's the flipside of the Durawrite system).
on the other hand, if you use something like QuickBench, you'll see the maximum compressible data rates.
on the other hand, if you use something like QuickBench, you'll see the maximum compressible data rates.
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Re: Yosemite kills third-party SSD support
apple is moving away from all user upgrades unfortunately
i am running yosemite on my late 2011 mbp with a newly installed 1gig transcend jetdrive
no issues other than yosemite is buggy and safari is slow super buggy and awful
i am running yosemite on my late 2011 mbp with a newly installed 1gig transcend jetdrive
no issues other than yosemite is buggy and safari is slow super buggy and awful
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Re: Yosemite kills third-party SSD support
I'm SO happy with my W ..... uh, oh, never mind...