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It is possible to create a Logical Volume Group spanning over more than two disks. I doubt that it will differentiate between fast and slow HDD. The SSD part should work though. To accomplish this put all drives in your iMac and boot to a Mavericks or Yosemite bootable installer thumb drive. Partition all drives as simple volumes with Disk Utility. Then ...


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Try to connect the TM Backup drive to your mac and hold the alt/opt key when booting. You should be able to see your time machine drive and boot from it. Once booted you can restore the time machine backup to your new SSD.


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Turns out this is symptomatic of a SATA cable issue. Seems like writing to the drive was fine (hence installing wasn't an issue), but reading from the drive was causing the issue. Verify and Repair disk in the installer weren't picking up the issue. Replacing the SATA cable fixed the problem.


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You can upgrade the storage in your MacBook Air–but it's more difficult than your average notebook. Your MacBook uses a solid-state drive over a proprietary NVMe bus. Because there's virtually no extra space in the MacBook Air, you'll need to buy special compatible storage from a company like OWC. Following this guide from iFixit you can then replace it. ...


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Try parallels, it lets you run multiple OS


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Use Disk Utility from a working machine I don't know why this didn't work in recovery mode, but a friend suggested I plug the SSD into a working Mac with a USB adapter and try using the working Mac's Disk Utility to format the drive. I did, and that worked. Now I'm installing OS X on it using recovery mode. Maybe (I'm speculating) the version of Disk ...


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Your MacBook Air (13" I presume) does not use a standard SSD drive in the 2.5" form factor that many others do. Instead it uses an SSD with a bare SATA connector on the end. It looks a bit like a standard memory DIMM. I generally buy upgrade parts for my Macs via Other World Computing. there are others that are just as good, if you prefer, but this SSD ...


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Part of it might be a setting in your energy saver settings that allows hard drives to sleep if not in use, you could check on that setting and see if adjusting it makes the job easier and searches quicker. A USB 3 drive (assuming it is on a USB 3 port) should be plenty fast enough to handle the necessary bandwidth. What might be slowing you down is the ...


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Booted to your main volume or Recovery HD open Terminal and enter (El Capitan installed): diskutil cs resizeStack 7D5C38D3-6682-498B-A003-82580C9EC3D3 1120g or in (Mavericks/Yosemite installed) diskutil cs resizeStack 7D5C38D3-6682-498B-A003-82580C9EC3D3 0g Please add a comment if you get an error .


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If you have your data safely backed up or don't care about losing it, you can follow these instructions to recreate your Fusion Drive. Boot into Internet Recovery or an OS X bootable drive. From the Utilities menu, open Terminal. Run diskutil cs delete 654B2807-197B-46D1-9919-B75C0290D33A to destroy your current Fusion Drive. This WILL lose all of your ...


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There was a firmware update for late model 13" MacBook Pros, possibly just the 2012, that properly enabled the SATA 3 in the optibay. In all other (non Retina) MBPs it's safest to use only SATA 2 drives for stability in the optibay, even though they report as SATA 3. Your HDD should have worked in the optibay, but may have been faulty, unless it was SATA 3. ...


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It depends on the system installed on the SSD. If the Mac Pro is capable of booting with it and it fits physically, then I see no problem why it shouldn't work. MacPro1,1 - 2,1: max system version: 10.7.5 MacPro3,1 - 6,1: max system version: latest all MacBookPros 2008 (4,1 and 5,1) can run the latest system Usually all necessary drivers for any Mac ...


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Apple recommends backing up your HD as they "can't guarantee the integrity of the data on hard drive." Or words to that effect. Theoretically you can do what you have proposed. You may have boot issues, EG the Mac the SSD is swapped into may not boot but that is unlikely to damage either the Mac or the drive, so if you have the Mac and the time, go for it. ...


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TRIM Support has been enabled for Third Party SSDs in OS X El Capitan. You can google it or watch this Youtube video


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Have you wrote about the installation methods that you did on all drives? Have you using USB flash drive with recovery included inside as your installation drive?


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Apple laptops need Trim support for the SSD to work - however this should not be a problem if that hard drive is the original drive that shipped with it. However if it's in warranty you might as well have Apple fix it - a new hard drive is always nice. To check go to https://checkcoverage.apple.com/ and put in your Serial Number which can be found under the ...


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Ok, so soon after this happened the 500GB 5400 rpm HDD failed also. I took it to Apple and the drive connector/cable was damaged from overheating they said. They changed the cable and it works great now.


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Salvation is coming! OWC will release SSD upgrades early 2016. http://eshop.macsales.com/shop/Memory/OWC/Apple-MacBook-Pro-Retina-Upgrades-2013-2015



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