If you're backing up your SSD like you should be doing already, then you'll have nothing to worry about.
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Mac OS X 10.10.4 Supports TRIM for Third-Party SSD Hard Drives
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If you're backing up your SSD like you should be doing already, then you'll have nothing to worry about.
I was waiting for Hellhammer to chime in. If he is unaware of any evidence showing an issue with OS X, then that's good enough for me to enable it. Besides I was running Trim Enabler (before 10.10) with my 840 Pro with no issues.
I uninstalled Disk Sensei (in El Capitan) and used the terminal command. I see no benefit in running both at the same time, as both (essentially) do the same thing, minus a few visual graphics provided with Disk Sensei).
Speed and 1TB storage. A couple of 512mb SM951’s as media and boot drives would be a killer set up though.
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- Indeed. I'm not buying it, either. TRIM has been rock solid on my 830 for 3 years.
Do you know if there are any differences between this command and what Trim Enabler does?
my time machine backup hard drive stays here at church with an external monitor and power cord. every morning i get to church i plug in the power, the monitor, and the time machine hd and it stays that way until i leave for the day.
personally i have some study files, all my personal family photos and videos. and work related all sorts of files for the kids classes and youth camps etc. and logos which is like the photoshop or final cut of bible study software.
if data gets messed up, and its backed up to the time machine, would that mean the TM hd is corrupted as well?
As far as I know this bug (which has seen firmware updates that supposedly fixed but then actually didn't, then followed by more firmware updates that really fixed it, so far it seems they still do) affects the Samsung 840/850 regardless of whether you have TRIM enabled or not. It is not TRIM that is buggy, it is SSDs that have bugs.
I've also have run TRIM for almost three years on my 830 now. There should not be any functional difference to Trim Enabler (as TRIM Enabler just enabled the built-in in TRIM). The real difference is that you no longer need to disable the restriction to only use signed kernel extensions to get TRIM on third-party SSDs (and that you no longer run the risk of almost bricking your Mac if you run an OS update while TRIM Enabler was 'switched on').
If your TM backup history is long enough to contain a clean copy of a file (from before the file got corrupted by the SSD) then you should be safe. Note however that to get a file into the 'permanent' TM history (ie, that it stays in the TM backup as long as there is space for it on the TM drive), it needs to stay up to one week (uncorrupted) on your SSD.
There aren't 'soft' drives, aren't they? As long as there is not 'disk' anywhere in the name, I'm fine.
This ATA_HORKAGE_NO_NCQ_TRIM refers to drives that wrongly report support for NCQ (Native Command Queue) TRIM. Apparently a recent firmware update (since pulled) to the Samsung 850 Pro caused it to wrongly report to the OS that it supported queued TRIM commands, when in fact all Samsung drives, like most SSDs, do not support queued TRIM and never have.
See:
https://bugs.launchpad.net/ubuntu/+source/fstrim/+bug/1449005/comments/52
This is not actually a bug with the normal un-queued TRIM command, and all this code is doing is forcing it to use normal TRIM for Samsung drives despite what the drive's firmware reports.
If there was really a TRIM bug with recent Samsung SSD's, the Samsung fanboys would be up in arms about it. There was a (performance) bug discovered with the SSD 840 EVO last year, and the web never heard the end of it, until Samsung fixed via a firmware update.
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Is anyone concerne over SSDs with TRIM bugs? like the Samsung 8* drives?
https://blog.algolia.com/when-solid-state-drives-are-not-that-solid/
https://blog.algolia.com/when-solid-state-drives-are-not-that-solid/
Earlier today Apple released OS X 10.10.4, an under-the-hood update to OS X that introduced several bug fixes and improvements. One improvement, according to Ars Technica, is support for TRIM for third-party SSD hard drives. We previously covered TRIM likely coming natively to the next version of OS X El Capitan but it appears support has already arrived.
You *DO NOT* want to enable this on Samsung SSDs. All 840s and 850s have the data killing bug.
https://blog.algolia.com/when-solid-state-drives-are-not-that-solid/
Honestly, I've given up correcting people about that. This fact has been repeated often enough, that if someone really cared about being informed, they'd know by now that they are not the same thing. I blame marketing. It's often claimed by industry leaders that TRIM is not useful on X company's SSDs, while that technically isn't true for any SSD.
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This is good, but why is it stating data loss may occur ? It the third party SSD has not support nativly, then its not support natively.... and likewise any tampering may cause uncertain risk.... Thus, there would be more failures on third party SSD with trim hat is not supported vs Apple's own SSD where you know is will work and no loss would occur. (considering all others being equal)
This kind of sounds bad, that a small chance that data loss will occurs for third party ssd's by enabling trim that APpe has no knowledge of, and they are helping with data loss..
If there was no chance of data loss, then there would be no warning..
In other words, I think Apple implements TRIM in their own way
Trim is basically garbage collection, where hard drives are smarter at doing this. SSD's need help at making sure the blocks are prepared to be written over.
This kind of sounds bad, that a small chance that data loss will occurs for third party ssd's by enabling trim that APpe has no knowledge of, and they are helping with data loss..
If there was no chance of data loss, then there would be no warning..
In other words, I think Apple implements TRIM in their own way
Trim is basically garbage collection, where hard drives are smarter at doing this. SSD's need help at making sure the blocks are prepared to be written over.
Time Machine only backs up things that the filesystem sees as having changed. Even if the file changed due to corruption, Time Machine will not know it, and will not back it up. The type of corruption you're talking about would only be backed up when a change that the filesystem knows about occurs, so the old non-corrupted file will still exist, assuming that backup is still around. If TRIM is going around causing corruption though, you'll soon notice a wide variety of issues, and be made aware that you have to restore from backup. I wouldn't worry too much.
They have changed the tone of the article since I first read it. They had been actively against using trim. Now it is okay, but unnecessary. It does sound like the three ways they have of compensating for lack of trim would still allow a benifit to trim. I may do this once I upgrade to Yosemite.
Apple is covering its bases, so to speak. I wouldn't read anything nefarious into the warning.
might have been refering to the the use of drive twice.
"Solid State Drives Hard Drives? Really?"
Much like when people say ATM machine.
- That's my thinking, too. It'd be great if more people would chime in.
Interestingly, I've never had the issue during updates. I've never disabled TRIM prior to an update (latest being 10.10.4), and all the updates ever did was just disable TRIM. No issues with it. I'm not going to push my luck by trying it with SMC/NVRAM, but I'm actually thinking that should be fine, too (for me, that is; I know others have had issues).
This is just does not make any sense. This company should go out of business. My 400$ lost on a owc SSD. Living in Germany, they wanted me to send their piece of junk back for analysis. SMART Status was just "dead" and OS X slow as hell. Any Disk I/O took ages. They are expensive, they didn't support TRIM.
GC and TRIM are not the same things. Every SSD has a GC Controller. They advertise it like its their invention.
DONT BUY OWC STUFF.
Trim Enabler by cindori Update scheduled for today ... no more disabled kext signing etc ... can't wait! (i know i could run terminal, but i want that switch button 8)
https://www.cindori.org/forums/topic/trim-enabler-with-os-x-el-capitan/page/7/#post-37319
P.S.: MacBook Pro mid 2010 1.2 TB FusionDrive with 256 GB Samsung 830 SSD (looking forward to be reTRIMmed again!)
https://www.cindori.org/forums/topic/trim-enabler-with-os-x-el-capitan/page/7/#post-37319
P.S.: MacBook Pro mid 2010 1.2 TB FusionDrive with 256 GB Samsung 830 SSD (looking forward to be reTRIMmed again!)
Very good question. I too would like to know the answer to this, or if there is anything I can do to help my 4 year old Intel SSD that until now has had no TRIM