Mikehalloran wrote: It doesn’t work in High Sierra since there is no Repair Disk. Is it OK use the Force Trim line in the Terminal and get those Samsungs onboard?Īnd, would I want to run that line with every new SSD drive I get for that TB dock? Actually, that question applies to a new non-boot SSD drive for any machine. ![]() Via a Thunderbolt dock (bare drives), I have 2 EVO 850s, and when I examine them in System Report, TRIM is not enabled. The 128GB SSD part of that has TRIM enabled already. That video computer I mentioned is an iMac with Apple's hybrid drive. I really appreciate all the info guys! I do have one other sticky question: maybe it would last until the warranty expires. Write to Zeros.įrom what I've read here, I realize my suspicions were correct- he was trying to get me to get the drive back up to speed, at the expense of its lifespan. The drive is still under warranty, but he told me to first try a low level format, i.e. The read speed was fine, but the write speed was less than half what it should be. After I erased the disk, I did a speed test. She did not have trim enabled when she used it in the MacBook Pro, because the OWC guy said not necessary. I went to repurpose my wife's old laptop drive, a 480GB OWC Extreme, as a work drive on our video computer. Mikehalloran wrote:Likewise never engage Secure Erase or Write to Zeros (Disk Utility won’t do that anymore, either). (PS: You might want to add your OS version to your signature.)Įdited to reflect "Disc First Aid" as proper tab reference in Disc Utility program. You should then be good to go, as Trim will now be an ongoing process for all drives, including your boot drive. Only your boot drive requires running from Recovery or alternate boot drive to effect Trim.Īlso run Disc Utility > Repair Disc for all your other SSDs (from Recovery or from normally booted Mac) to bring the Trim state up to date. If running an older, pre Recovery Partition OS version, you can access Disc Utility while booted from an alternate boot drive. As the process is nearing completion, you should see a note along the lines of "Trimmed Free Blocks". I've already determined that I should have enabled it initially.Īssuming you are running Safari, after you enable Trim as Mike describes, restart your Mac from macOS Recovery and run Disc Utility > Disc First Aid, on your system drive as described here:Ĭlick the "Details" toggle to show you what is happening as the process proceeds. It's to determine if I can still turn it on, after the fact, and if it will do me any good to do so. this post is not about that, so let's not. I've seen arguments here about the necessity of enabling trim or not. So the second part of my question is, how do I trim enable all the volumes, not just the startup drive? The Terminal command line to enable trim that we see out there is always for the startup drive, I've never found how to do non-startup volumes? Or does it turn it on for all SSDs at once? I'm running OS Sierra. I have the startup/system drive, my DP projects drive, and a library/sample drive. ![]() But the EVOs absolutely did need to have trim enabled. I definitely don't want to wear out the performance of the drives, but I wonder if it's too late to turn trim on? Would I potentially mess things up? And if it's not too late, would it even be beneficial? The E2 blade is an OWC product and they claim that it's not necessary to enable trim for their SSDs, but I have to confirm that with them tomorrow. I was actually advised not to by the store guy, because there were problems with the EVOs (turned out it wasn't really an issue with Macs, but I bought his story). Man, it was like buying a new computer! But. I now have only one 4TB spinner left, for storage/archiving. It started with the startup spinner needing to be replaced, but then I got SSD fever and bought more. Last winter I outfitted my old Mac Pro with 3 EVO 850s, and an OWC Accelsior E2 PCIe blade, all 1 TB.
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